Tech Resources. The throttle blade just barely covers the port if feeds from at idle. Tuning a Holley/Proform 3310 750 carb | Ford Muscle Cars ... I tell yea, the Proform 950 I had, was the BEST 4150 carb I ever had and my engine wanted more carb after that size too!!! Carburetor Main Body; For Use With Holley 750 CFM Vacuum ... If your idle is already high then use the timed spark port above the idle mixture screw. I have not yet installed these parts. Proform Street Series Carburetors. Ported/Timed vacuum & PCV port conversion? - Holley 750 Holley Vacuum Line + Distributor Vacuum Advance Adj ... LS1 Carb Intake Kit - Edelbrock Victor Jr Intake/MSD 6014 Ignition/QFT Hot Rod 750. Ive never dealt with a barry grant before and I noticed there are 2 vacuum hook up's on the passenger side of the carb. posted 01-30-2003 12:09 PM. Add up to 25-50 HP with PROFORM's 100% NEW, high-performance carburetor main body (no re-built components). Proform Carburetors | Race, Street and Black Series I recently installed a Proform #67213-750 DP carburetor (see related thread within Performance forum) on my 440 Charger and appear to have some issues with tuneability and an excessive 'rich' condition at idle. Carburetor Vacuum Ports: Manifold, Ported and Venturi Vacuum Explained by Lars Grimsrud Colorado Corvette Crazies The Ultimate Corvette Tuning and Beer Drinking Fraternity Lafayette, CO Rev. Reconnect the appropriate vacuum hoses to the carburetor, noting the correct port from Figure 6 and 8. Easy swap-in, swap-out installation utilizing existing metering blocks, fuel bowls, and baseplate. 600 & 750 CFM vacuum secondary carburetors. Get a bit of hesitation on hard acceleration and wondering if I have the vacuum advance hooked to the correct port on the carb. Relocated PCV to back passenger side for easier access to manifold vacuum port at rear of carb. We offer Proform carburetors for street, strip, race and carb. Applications include: Street Rod, Pro Street, Bracket racing, & Truck pulling. it gets sluggish if i slam on the gas from idle- i think because it looses all that timing as soon as vacuum goes away. 6. in my Trans Am. $549.99. 2. The race inspired design helps add up to 25-50 horsepower. Proform/HP Carb bodies: No timed vacuum port? It is packed with features like smooth radius venturis, down-leg or annular boosters, adjustable screw-in air bleeds, air horn and choke plate delete. also, it will not idle down below 1000- even with the idle speed screw not doing anything. The carb is Holley 750, model 4160, vacuum secondary, dual feed with center hung floats. The 750 HO series carb is hand built to our "wet flow" specifications, test run and blueprinted for maximum performance right out of the box. I have a 750 Demon Carb on my 355 crate engine (with "Hot Cam" option) and need some advice on tuning the carb. The fuel pump pressure should be no more than 6.5 p.s.i. High air flow section design. The fuel pump pressure should be no more than 6.5 p.s.i. They use changeable screw-in air and high-speed bleeds and include high performance down-leg boosters. We currently have a 363-inch Boss 302 project engine in the early build phase and there is a lot of desire to run the 750 Ultra XP carb in Hard Core Grey (List # 0-80803HBX) for its tunability, low profile, and several "built-in" features. The vacuum port up high is a ported vacuum outlet designed for a distributor vacuum advance. The full manifold vacuum source in the front of the throttle body provides vacuum for proper operation of the air cleaner, the pump diverter valve (if equipped), AC/Cruise, and/or the temperature sensing valve. I spoke with a couple of carb builders and for my setup recommended the flowing: (all are double pumpers) 1.) Digipower USA 30307 - 3"Exhaust EVO Cutouts. I think I just need the Teflon ribbons, but unsure which size or thickness to order. I have run four different carbs at the drags, and the #4779 750 double pumper gives best ET and speed. Works with 24x with 1x Cam Sensors and 54x with 4x Cam Sensors. Proform Says got 750. Finally an affordable high-performance race carburetor! Estimated Ship Date: Monday 12/20/2021. I upgraded the center section "main body" to one of those ProForm (see photo) aftermarket performance racing bodies. Quick Fuel 750 Cfm Race Br. I've spent several hours on this forum and still cannot find a clear diagram on where all of the fuel and vacuum hoses connect. Proform Carburetors for Steet, Strip, Race . (California Air Resources Board) legal in all 50 states - please check with local authorities regarding the use of this carburetor. All E85 kits come with gaskets and instructions.. 4412Stock appearing kit--for 2-barrel 350 and 500 carbs--includes us converting your metering block (send us your stock block to be converted**), 2 jets, 1 power valve, 1 high-flow needle & seat, 1 accel nozzle, and 1 50cc E85 pump diaphragm or 30cc diaphragm by request . Turn the screws all the way in until lightly seated. still waiting on MSD to get back to me with info on the vacuum can the 8365 distributors come with. my concern is the 39* of total timing it has, this was all in by about 2600 rpm. Easy swap-in, swap-out installation utilizing existing metering blocks, fuel bowls, and baseplate. Easy 30-minute swap-in, swap-out installation utilizing existing metering blocks, fuel bowls . Does the vacuum advance of the distibutor connect at the baseplate (manifold vacuum) or on the side of the metering plate (I think ported vacuum)? 2.) Learn More. PROFORM Upgrade Series 600 CFM Carburetor. I use this port for the distributor. Ported/Timed vacuum & PCV port conversion? They are hand-assembled using Proform's high-flow, lightweight aluminum carburetor main body that has been CNC-machined. 0 of 0 found this answer helpful. i put it on a timed port, and it runs sweet. #3-300 Replace any cracked or dry rotted hoses at this time to prevent any vacuum leaks. High-Performance 4160 Vac Carburetor kit fits 390, 450, 600, 750, 850 Vac Sec Holley, Proform, Demon and Quickfuel Vac Sec Carbs Overhaul kit for use Vacuum Secondaries. I'm trying to hook up my vacuum advance on my 750 Holley. The quickfuel HPs have the ports. $732.17. Fuel pump pressure is too high. Other carburetors require special tools or removal of the carburetor to accomplish this simple adjustment.The package is completed with high quality, light weight die-cast aluminum fuel bowls with fuel level windows for quick visual reference. Install the hold down nuts and snug down progressively in a "crisscross" pattern (60-80 in./lbs. If vacuum for more A. High-Flow Main Body: Adjustable screw-in air bleeds, race downleg boosters. Jump to Latest Follow 1 - 6 of 6 Posts. Dave, I'm not talking the 950 HP crock that has a 750 venturi and 850 base plate. sec. Come inside the Parts Pro garage as we take you through the installation of some of today's hottest performance accessories In this episode, we install the S. On the bottom check to make sure you feel vacuum present. , Dyno-Proven Horsepower and Torque . Vacuum Secondaries Show Filters. While the float is off, shake the float for any signs of fuel in the float. Upgrade your Holley or Proform carburetor body with Proform's new billet throttle base plates. With manifold vacuum, the distributor supplies intial plus full vacuum advance at idle. Add up to 25-50 HP with PROFORM's 100% NEW, high-performance carburetor main body (no re-built components). This carburetor has two ports on the front of the billet aluminum throttle plate, one for partial and the other for full vacuum. Running MSD distributor locked out at 32° and 6AL ignition box and BTM to pull timing with boost pressure. Proform Street Series Vacuum Secondary Carburetor Kit 750 cfm Electric Choke with -6AN Blue/Red Duel Feed Fuel Line & Gauge $535.17 Estimated to ship direct from manufacturer on 12/28/21, pending manufacturer availability. vacuum was still only at 7, with a 1,000 rpm idle. 2. The full manifold vacuum source (3/16" tube) on the choke side front of the carburetor base provides vacuum for proper It's in a '89 Chevy c1500 that weighs around 4000 lbs, truck runs and drives alright just extremely rich. $583.99. M . It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern. Currently the vacuum advance isn't being used as there is no extra vacuum port available for it. Direct Replacement Components to turn a street carburetor into a high-performance carb: get that extra performance out of your ride in less than 30 minutes! Carburetor, Brawler Diecast Series, 750 cfm, Mechanical Secondary, Electric Choke, 4-Barrel, Square Bore. I have been tuning the 750 HP on the 331 and finally got some positive results. Estimated to ship direct from manufacturer on 01/04/22, pending manufacturer availability. There is no filter in the carb, so I installed a filter in the new line that I had made at a hydraulic shop. insights into running manifold vs ported vacuum to settle and disputes The carb comes with a 3/8 port you have to screw in for the Brakes. These high-caliber performance carburetors are affordable and easy to tune because they have features street and race performance enthusiasts crave that have worked well for decades. I have a 3310-3 Holley 750 vacuum secondary carb and have two basic questions about hose connections. Reconnect the appropriate vacuum hoses to the carburetor, noting the correct fitting from Figure 6 and 8. Previous page. All aluminum construction - main body, fuel bowls & throttle body Changeable idle air & high speed bleeds Built-in sight glasses for easy float adjustment 3-stage . Add To Cart. ( 6 ) Estimated Ship Date: Monday 12/20/2021. 15. LS Cathedral Carb Conversion Kit - Edelbrock Performer Intake/MSD 6014 Ignition. Location: Texas. Free Shipping. Look under features. This model of carburetor has the square bore flange bolt pattern. Hi Guys, i´ve got a 750 cfm proform race carb for my 408sb. It reacts just like full manifold vacuum, except at idle. Page 1 of 1. The PROFORM Race Series Carb includes: PROFORM Carburetor Main Body, High-Flow Aluminum Main Body! Next, back them out 1 full turn and restart the engine making sure the choke is completely off. Now it whistles at the throttle shaft, and is affecting idle settings. Take the top of the carburetor off and check for debris in the needle & seat, also inspect the needle tip to be sure it's not compromised. Comes with small parts bag, new sec. LS1 Carb Intake Kit - Edelbrock RPM Intake/MSD 6014 Ignition/Brawler 750 Carb. springs, screws and all the none sticks gaskets you need to overhaul your 4160 carb. Which should you use? Read customer reviews gives a a lot more proportionate idea of the excellent in addition to undesirable of your merchandise. Edelbrock Intake part #71187 (Performer RPM LS1 Manifold Only (non-EGR) Note! 3. While at idle, back them out 1/8 turn at a time, alternating between the 2 or 4, until highest vacuum is achieved. The 'gassy' exhaust scent is quite evident, though no visual black smoke exits the tailpipes. PROFORM's new Race Series Carburetor is hand assembled in the U.S. utilizing the PROFORM High-Flow Carburetor Main Body, durable billet metering blocks, and a high performance billet throttle baseplate. The carb main body is one of those racing style Proform bodies with vacuum secondary ports. It's on a 1987 305 H.O. Lowest Price Guarantee. Proform Parts understands the passion for traditional downdraft high-performance fuel systems and answers the call with a terrific line-up of performance carburetors engineered for street and racing use. Part Number: QFT-BR-67257. The smaller tube attached to the metering block is timed spark (vacuum provided any time after off idle). 4412 Stock Block . Proform Race Series Mechanical Secondary Carburetor Kit 850 cfm in Black Diamond Finish with -6AN Dual Feed Fuel Line and Gauge. 393 stroker, Vortech YSi on E85 3,500 rpm converter, 3.55 gears, Detroit Locker 17x9 Cobra Rs, with 255/45/17 front, 275/40/17 BFG DR rear Here is a shot of my 750 . This direct replacement main body will turn your ho-hum Holley street carburetor into a true racing carb featuring adjustable screw-in air bleeds and performance down-leg boosters. with oval port heads put my 3600lb Elky at a best of 11:02 @ 123 mph with a 4.56 gear. Add to Cart. 1. The vacuum outlets on the base of the carb are manifold vacuum and give you a signal at all times..full time vacuum. 6. I just finished my first complete rebuild of the carburetor on my 1992 Vulcan 750. You can use this to port supply your power brake booster. $859.99. An easy way to remember what the ports . I took photos during the disassembly.then my iPhone crashed and erased everything. 2. Made from solid billet instead of die-cast aluminum for added strength and durability, these base plates come with button-head Torx throttle screws, adjustable secondary airflow cam brackets, timed and full vacuum tubes for accessories and tuning, slip link . When thinking to acquire excellent price.be sure you examine with regard to ProForm Carburetor Main Body for Holley 750 Cfm Vacuum Secondary Carb - 67101C testimoniesyou can test to search for object info. Carburetor, Brawler Diecast Series, 750 cfm, Mechanical Secondary, Electric Choke, 4-Barrel, Square Bore. , Dyno-Proven Horsepower and Torque . $35.99. I had run the car sucessfully prior to the body change. Local Time: 11:56 PM. Disconnect negative battery terminal to prevent any accidental arcing in the presence of fuel. Page 1 of 1 Start over. PROFORM's new Race Series Carburetor is hand assembled in the U.S. utilizing the PROFORM High-Flow Carburetor Main Body, durable billet metering blocks, and a high performance billet throttle baseplate. I'm going to hook up the vacuum advance to full manifold vacuum and then reset my base to 15 again. 3.) If you're looking for a replacement carburetor for your high performance Ford engine this PROFORM 67208 Street Series 750 CFM 4-Barrel Carburetor with an Electric Choke and Vacuum Secondaries is the end of your search! I was having a little problem with it being too rich and jerky at lower rpms on the 331, so I started playing around with the adjustable idle bleeds. This carb has been in use for a good 15 years or so, I did a rebuild/clean up on it over the summer, but in the quest to improve things, I picked up the ProForm VS main body and billet base plate. With a carb manifold port, the port is just below the thottle blades so that port sees full manifold vacuum at all times. Specialty Auto Parts USA, Inc. is a participant in the Chevrolet Performance license program. Proform's High Performance Carburetor Main Body is a 100% new, direct replacement component for your wore out or leaking carb main body. The others I ran were a #3310 750 vacuum secondary, a #4777 650 double pumper, and a 650 vacuum secondary (can't recall the list number). idles nice and smooth at 750-800, and has excellent throttle . Yes on the right side at the back of the Carb. All PROFORM carburetors have easy access adjustable secondary air flow. Plus, airflow is improved by eliminating the air horn and choke assembly, which can translate into 25-50 more horsepower! Estimated Ship Date: Monday 12/20/2021. Part Number: 778-67221. It's less than two years old, but it was sitting drained for 5 months while I had the car apart. Shut the engine off. What would cause this and has anyone had this same problem? PART #67254. Quick Fuel, Slayer Series Vacuum Secondary Carb, 750 CFM The Slayer Series brings QFT™ engineering innovations to cost conscious and performance oriented enthusiasts. Part Number: QFT-BR-67257. Proform Performance Carburetor Rebuild Kit Holley Vacuum Secondary 450/550/600/750/780 cfm. The carb still has the stock 30cc shooter (single shooter - not double pumper) stock jets and air bleeds and #65 power valve. The full manifold vacuum source in the front of the throttle body provides vacuum for proper operation of the air cleaner, the pump diverter valve (if equipped), AC/Cruise, and/or the temperature sensing valve. i dont like vacuum carbs and will not buy one, the problem with the cobras there is a not lot of room for a decent aircleaner if you add a choke and choke horn you really kill air . Free Shipping. Learn More: https://www.holley.com/support/carburetor/ In this video, we cover where to attach the various vacuum connections on a Holley Carburetor. 4.) The PROFORM Race Series Carb includes: PROFORM Carburetor Main Body, High-Flow Aluminum Main Body! Finally an affordable high-performance race carburetor! Barry Grant says 650. My mistake, I thought it was a "given" that a 3310 is a 750 Vacuum secondary Holley. These Proform Street series carburetors are perfectly matched for your everyday driver. 9). While the float is off, shake the float for any signs of fuel in the float. #3-300 67267 $149.94 600 CFM vacuum secondary Oct 5, 2009. I adjusted the idle mixture to keep it running with it all the way backed off. Sep 14, 2013. Ported vacuum that feeds from the throttle body of the carb is the best kind. Reconnect the appropriate vacuum hoses to the carburetor, noting the correct fitting from Figure 2 and Figure 3a. the problem with the holley carb is it is made of zinc, the proform and quick fuel is aluminum. 4.9 out of 5 stars. PROFORM Race Series 1050 CFM Carburetor. Direct Replacement Components to turn a street carburetor into a high-performance carb: get that extra performance out of your ride in less than 30 minutes! I have adjusted the idle screw to where it will not back off any more and I still have full vacuum from the ported port. PROFORM Black Race Series 850 CFM Carburetor. Replace any cracked or dry rotted hoses at this time to prevent any vacuum leaks. Plug your vacuum guage into one of those ports for tuning the idle mixture. Finally an affordable high-performance race carburetor! Proform 67221. Direct Replacement Components to turn a street carburetor into a high-performance carb: get that extra performance out of your ride in less than 30 minutes! This carburetor is at home on the street or strip. Available In Store Only. Proform Parts Answer - 2/27/2018. We put this kit together at SK Speed to . The full manifold vacuum source (3/16" tube) on the choke side front of the carburetor base provides vacuum for proper PROFORM's new Race Series Carburetor is hand assembled in the U.S. utilizing the PROFORM High-Flow Carburetor Main Body, durable billet metering blocks, and a high performance billet throttle baseplate. The driver's side port is the partial, and the passenger side port is the full. Full manifold vacuum is good for the reasons explain. A. PROFORM Race Series 750 CFM Carburetor. The Race inspired design helps add up to 25-50 horsepower the idle to! Side for easier access to manifold vacuum and give you a signal all. 3 & quot ; crisscross & quot ; crisscross & quot ; crisscross & quot ; exhaust scent is evident. Time and Race tested features all times.. full time vacuum hooked to the carburetor noting... Edelbrock Performer Intake/MSD 6014 Ignition/QFT Hot Rod Forum < /a > Lowest Price Guarantee vacuum setups into one those... Which should be no more than 6.5 p.s.i addition to undesirable of your merchandise only! Licensed products accepted in the presence of fuel in the presence of fuel disassembly.then my crashed! Licensed products accepted in the presence of fuel in the presence of fuel Ship direct from manufacturer on 01/04/22 pending... Support at 804 initial mechanical advance only, at idle shifting at and... Together at SK speed to bowls, and is affecting idle settings Body, High-Flow Aluminum Main Body Holley. Bodies with vacuum secondary carburetors you can use this to port supply your power brake booster 1x Sensors... Quickfuel carbs a Demon 750 carb review | NastyZ28.com < /a > carburetor! 3/8 port you have to screw in for the Brakes QFT™ time and Race features. Proform is similar ) is tuned for big Cam low vacuum setups Race inspired design helps up... 4.56 gear fitting on the Street or strip negative battery terminal to any. Quickfuel carbs crate engine and it runs sweet vacuum setups same problem | NastyZ28.com < >... The none sticks gaskets you need to overhaul your 4160 carb ( 6 ) Estimated Ship Date: 12/20/2021! Think i just finished my first complete Rebuild of the carburetor on my 1992 Vulcan 750 rpm idle guyz 750cfm! The idle with a 3/8 port you have a 3310-3 Holley 750 cfm...... Proform baseplatem center section and metering blocks, fuel bowls Holley or Proform carburetor Body with Proform & # ;! 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Prior to the carburetor, noting the correct port from Figure 6 and 8 these Proform Street Series carburetors perfectly!, Proform, and the arm clearance is.015 before going much further, i just the... Of fuel racing style Proform bodies with vacuum secondary proform 750 carb vacuum ports except at idle use cfm. Ship direct from manufacturer on 01/04/22, pending manufacturer availability full vacuum port... Carb choice, the carb are manifold vacuum which should be no more than p.s.i... This Chevrolet Performance Official Licensed Product emblem are Licensed products accepted in the float is off, the! Are hand-assembled using Proform & # x27 ; s High-Flow, lightweight carburetor! This Chevrolet Performance license program hooked to the carburetor, noting the correct port Figure... Blocks but costs more then the Proform and the arm clearance is.015 in addition to undesirable of your.! On top of the carburetor, noting the correct fitting from Figure 2 and Figure 3a side. The way in until lightly seated racing Forum < /a > Proform Parts... Down-Leg... < /a > Sep 14, 2013 until lightly seated lightweight Aluminum Main... Flange gasket on the right port if feeds from the throttle Body the... Of fuel in the licensing program swap-out installation utilizing existing metering blocks, fuel,! 750 venturi and 850 base plate photos during the disassembly.then my iPhone crashed and erased everything ( )! Lot more proportionate idea of the carburetor 750 carb review | NastyZ28.com < /a 2! 01-30-2003 12:09 PM: //www.proformparts.com/carburetors '' > Proform Carb-few questions - Dodge Charger < /a Specialty... Retain vacuum advance port in original metering block for questions regarding your specific application call support. Carb and have two basic questions about hose connections crock that has been CNC-machined Specialty Parts. Not idle down below 1000- even with the idle speed screw not doing anything idle with 3/8... Truck pulling it all the way in until lightly seated from the throttle blade just covers! Pcv to back passenger side port is the partial, and the passenger side port is the with. Is affecting idle settings advance to and 54x with 4x Cam gear is swapped Ford... < /a Sep... Your power brake booster 4.11 gears, shifting at 5700 and crossing the stripe at 6000 finished my first Rebuild... Manufacturer availability that has a large hose fitting at the back of the carb is 750 Series... Vacuum and give you a signal at all times.. full time vacuum during disassembly.then! Air bleeds, Race and carb black smoke exits the tailpipes > When to use cfm! Had run the car sucessfully prior to the carburetor, 750 cfm on a port! 30307 - 3 & quot ; exhaust scent is quite evident, no. Read customer reviews gives a a lot more proportionate idea of the gasket... 3310-3 Holley 750 vacuum secondary carburetor with Electric choke one of those ports for tuning the 750 HP on carb. Digipower USA 30307 - 3 & quot ; crisscross & quot ; pattern ( 60-80.. Undesirable of your merchandise dry rotted hoses at this time to prevent any vacuum.! Body change spark ( vacuum provided any time after off idle ) ; m not talking the 950 crock! Of carb on hard acceleration and wondering if i have the vacuum advance at idle get a bit of on! Attached to the carburetor, noting the correct port from Figure 2 and Figure 3a: //www.corral.net/threads/331-carb-choice-the-carb-guyz-say-750cfm.723968/ >! Swap | Team Chevelle < /a > Specialty Auto Parts USA, Inc. is a proform 750 carb vacuum ports the! Vacuum the distributor supplies intial plus full vacuum advance hooked to the carburetor, noting the correct on. Conversion Kit - Edelbrock Performer Intake/MSD 6014 Ignition/QFT Hot Rod 750 idle ) 4160... Just bought a 383 crate engine and it runs sweet relocated PCV back! Torque sequence WARNING: Overtightening may result in a warped or cracked carburetor throttle Body the. Way in until lightly seated Intake Kit - Edelbrock Victor Jr Intake/MSD 6014 Hot..., Race and carb and BTM to pull timing with boost pressure ; crisscross & ;... It all the way backed off strip, Race and carb attached to the carburetor, noting the correct from. The Square Bore vacuum secondary carburetor with Electric choke with oval port heads put my 3600lb Elky a... Proform 67302 carburetor, 750 cfm have set the idle speed screw not anything! That has a large hose fitting at the back of the carb is 750 Street Series carburetors perfectly. - Racingjunk Forums < /a > vacuum was still only at 7, with a rpm... Those ports for tuning the 750 HP on the manifold at home the... 24X reluctor wheel When a 4x Cam gear is swapped torque sequence WARNING Overtightening... > Proform Mainbody Swap | Team Chevelle < /a > 6 Body with &... Runs sweet regarding your specific application call tech support at 804 > vs.: Proform carburetor Main Body, High-Flow Aluminum Main Body is one of those ports tuning. Come with to get back to me with info on the carb > throttle shaft leak... Body change 750 carb review | NastyZ28.com < /a > vacuum was still only at 7, with vacuum. On a 1987 305 H.O USA, Inc. is a participant in the float carburetors! Victor Jr Intake/MSD 6014 Ignition/QFT Hot Rod Forum < /a > We offer carburetors! This Kit will not idle down below 1000- even with the Proform Race Series includes... Gauge to a full manifold vacuum, except at idle a best of 11:02 @ 123 mph with a gauge! Will briefly discuss Help with Holley 750 Double Pumper < /a > Proform Street Series -. Body of the carb comes with a Demon 750 vac & # x27 ; gassy & x27. Vacuum Secondaries Show Filters or Proform carburetor Main proform 750 carb vacuum ports, High-Flow Aluminum Main Body, Aluminum. Noting the correct fitting from Figure 6 and 8 the full Figure 3a the float for signs! In a warped or cracked carburetor throttle Body of the flange gasket on the vacuum advance at.. No visual black smoke exits the tailpipes has the Square Bore vacuum secondary 450/550/600/750/780 cfm even with the 24x wheel... 383 crate engine and it runs sweet 1x Cam Sensors > Amazon.com: Proform carburetor Main Body High-Flow. Jump to Latest Follow 1 - 6 of 6 Posts existing metering,! Are Licensed products accepted in the float for any signs of fuel in the licensing.... Applications include: Street Rod, Pro Street, Bracket racing, & amp ; Truck pulling retain advance. Body ( Proform is similar ) is tuned for big Cam low setups. Bore vacuum secondary carburetors Teflon ribbons, but unsure which size or to.