Next Gen Race Series Carbs are HERE! PROFORM is taking its popular carburetors and making them even better! Here are the NEW Features: Main Body: Completely new main body design with contoured venturis and new 2-step down-leg boosters. The combination creates better air flow and increased fuel atomization! Fuel Bowls: Completely new design with increased internal baffling and a lower fuel ramp. The metering blocks also have a new baffle designed to work in conjunction with the bowl baffles to reduce fuel slosh and increase control. Throttle Base Plate: Slabbed shafts for increased airflow are now standard! In addition to these new features are all the great features that define the Race Series from the competition. Hand assembled and dyno tested in the U.S.A. by racers for racers! All PROFORM Race Series Carbs include the following: PROFORM's innovative all-aluminum next-gen main body with adjustable screw-in air bleeds and torx head squirters. Billet aluminum throttle base plate that is fully adjustable for fine tuning, and won't warp. The throttle lever is compatible with Ford kickdown bracketry, and the secondary opening rate can be adjusted with a linkage kit (sold separately). The billet aluminum metering blocks have a new fuel baffle design that integrates with the fuel bowl float for better fuel control. The metering blocks are fully adjustable as they always have been. Lastly, the aluminum fuel bowls with sight glass windows and billet fittings are a new design that is optimized with new features for better fuel control and easy float setting.
Specifications:
| Feature/Benefit |
Lightweight Aluminum Construction |
| Primary Power Valve (Hg) |
4.5 |
| Height (IN) |
3.25 inch |
| Needle & Seat |
130 |
| Fuel Line Inlet Distance |
9-11/16 inch |
| Discharge Nozzle Size (Primary / Secondary) |
.035 in. / .035 in. |
| Secondary Main Jet Size |
91 / .104 |
| Air Bleed Size (Inner High Speed) |
31 / 31 |
| Idle/High Speed Air Bleed Sizes |
70 / 31 |
| Primary Main Jet Size |
87.5 / .099 |
| Booster Style |
Down-Leg Boosters |
| Material |
Aluminum |
| Air Bleed Size (Outer Idle) |
70 / 70 |
| Series |
Race Series |
| Secondaries |
Mechanical Secondaries |
| Part Type |
Carburetor |
| Number of Barrels |
4 |
| Metering Block Material |
Billet Aluminum |
| Main Body Material |
Lightweight Aluminum |
| Calibration |
Universal |
| Base Plate Material |
Billet Aluminum |
| Fuel Inlet Thread |
7/8-in. x20 |
| Throttle Linkage |
Universal |
| Fuel |
Gasoline |
| Flange Style |
Square Bore |
| Finish |
Vibratory Tumble Polished |
| Emissions |
49 State Legal |
| EGR |
Without EGR |
| Color |
Natural |
| Choke |
No Choke |
| CFM |
1050 CFM |
| Category |
Carburetor- 1050 CFM |
| Fuel Inlet |
Dual |
| Air Bleeds Included |
Yes |
| Air Bleed Material |
Brass |
| 4708 |
No |
| 6444 |
1.75 |
| 356 |
4 |
| 835 |
0.25 |
| 30 |
No |
| 574 |
No |
| 6443 |
1.875 |
| 4234 |
Yes |
| 765 |
0.875 |
| 3390 |
Performance |
| 353 |
Yes |
| 4265 |
Nitrophyl |
| 1968 |
4150 & 8090 |
| 4235 |
Manual |
| 878 |
Yes |
| 621 |
Aluminum |
| 614 |
3.25 |
| 1385 |
Silver |
| 1428 |
5.25 |
| 1427 |
5.25 |
| 857 |
4 |
| 6440 |
0.25 |
| 6431 |
Yes |
| 6442 |
0.1085 |
| 6441 |
0.102 |
| 1271 |
Yes |
| 8783 |
Square/4150 |
| 9324 |
Mechanical |
| Description_ABR |
Carburetor |
| Description_SHO |
Carb - Gas/1050 CFM |
| Description_INV |
Carb |
| Description_INV |
Race Series -1050 CFM |
| Description_INV |
Mech. Sec. |
| Description_DEF |
Carburetor |
| Description_ASC |
Engine Carburetor |
| Description_ASC |
Race Series Model |
| Description_ASC |
Gas |
| Description_ASC |
1050 CFM |
| Description_ASC |
Mechanical Secondaries |
| Description_LAB |
Engine Carburetor |
| Description_LAB |
Race Series Model |
| Description_LAB |
1050 CFM |
| Description_LAB |
Mechanical Secondaries |
| Description_DES |
Engine Carburetor |
| Description_DES |
Race Series Model |
| Description_DES |
Gas |
| Description_DES |
1050 CFM |
| Description_DES |
Mechanical Secondaries |
| Description_EXT |
Engine Carburetor |
| Description_EXT |
Race Series Model |
| Description_EXT |
Gas |
| Description_EXT |
1050 CFM Dual Inlet 4-Barrel With Mechanical Secondaries |
| Description_EXT |
Square Type Bore Mount |
| Description_EXT |
Features Down-Leg Boosters and A Polished Aluminum Finish |
| Description_EXT |
No Choke |
| Description_EXT |
Assembled With 100% New Components |
| Description_EXT |
Sold Each |
| Description_MKT |
Next Gen Race Series Carbs are HERE! PROFORM is taking its popular carburetors and making them even better! Here are the NEW Features: Main Body: Completely new main body design with contoured venturis and new 2-step down-leg boosters. The combination creates better air flow and increased fuel atomization! Fuel Bowls: Completely new design with increased internal baffling and a lower fuel ramp. The metering blocks also have a new baffle designed to work in conjunction with the bowl baffles to reduce fuel slosh and increase control. Throttle Base Plate: Slabbed shafts for increased airflow are now standard! In addition to these new features are all the great features that define the Race Series from the competition. Hand assembled and dyno tested in the U.S.A. by racers for racers! All PROFORM Race Series Carbs include the following: PROFORM's innovative all-aluminum next-gen main body with adjustable screw-in air bleeds and torx head squirters. Billet aluminum throttle base plate that is fully adjustable for fine tuning, and won't warp. The throttle lever is compatible with Ford kickdown bracketry, and the secondary opening rate can be adjusted with a linkage kit (sold separately). The billet aluminum metering blocks have a new fuel baffle design that integrates with the fuel bowl float for better fuel control. The metering blocks are fully adjustable as they always have been. Lastly, the aluminum fuel bowls with sight glass windows and billet fittings are a new design that is optimized with new features for better fuel control and easy float setting. |
| Description_FAB |
Lightweight Aluminum Construction |
