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! Add up to 25-50 HP with PROFORMs 100% NEW, high-performance carburetor main body (no re-built components). Easy swap-in, swap-out installation utilizing existing metering blocks, fuel bowls, and baseplate. Involves only 14 screws. Has adjustable screw-in air bleeds, high-performance down-leg boosters. Get maximum air flow with no air horn, choke tower, or choke control. Comes with instructions, all necessary non-stick replacement gaskets, and high-performance jet kit. PROFORM is a registered trademark of Specialty Auto Parts USA, Inc. Holley's and Double Pumper's are registered trademarks of Holley's Performance Products, Inc. This product is supplied by Specialty Auto Parts USA, Inc. and it is not endorsed by any other carburetor manufacturer. Technical Note: Main body does not retain vacuum advance port in original metering block.
Specifications:
| Feature/Benefit |
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! |
| Needle & Seat |
130 |
| Secondary Main Jet Size |
91 / .104 |
| Discharge Nozzle Size (Primary / Secondary) |
.035 in. / .035 in. |
| Air Bleed Size (Inner High Speed) |
31 / 31 |
| Idle/High Speed Air Bleed Sizes |
70 / 31 |
| Primary Main Jet Size |
87.5 / .099 |
| Finish |
Natural |
| Fuel |
Gasoline |
| Fuel Bowl Gaskets Included |
Yes |
| Fuel Bowl Screw Gaskets Included |
Yes |
| Material |
Aluminum |
| Secondaries |
Mechanical Secondaries |
| Technical Note |
Main body does not retain vacuum advance port in original metering block. |
| Color |
Natural Aluminum Finish |
| Air Bleed Size (Outer Idle) |
70 / 70 |
| CFM |
1050 CFM |
| Category |
Carburetor Main Body |
| Booster Style |
Down-Leg Boosters |
| Main Body Material |
Lightweight Aluminum |
| Air Bleeds Included |
Yes |
| Air Bleed Material |
Brass |
| Description_ABR |
Carb Body |
| Description_SHO |
Carburetor Main Body |
| Description_INV |
Carburetor Main Body |
| Description_INV |
Holley 1050 CFM |
| Description_DEF |
Carburetor Main Body |
| Description_ASC |
Carburetor Main Body |
| Description_ASC |
For Use With Holley 1050 CFM Double Pumper Model Carb |
| Description_LAB |
Carburetor Main Body |
| Description_LAB |
For Use With Holley 1050 CFM Double Pumper Model Carb |
| Description_DES |
Carburetor Main Body |
| Description_DES |
For Use With Holley 1050 CFM Double Pumper Model Carb |
| Description_EXT |
Engine Carburetor Main Body |
| Description_EXT |
For Use With Holley 4150 1050 CFM Alcohol Carb |
| Description_EXT |
Requires 1-3/4 Throttle Body |
| Description_EXT |
No Air Horn |
| Description_EXT |
Adjustable Air Bleeds and Hi-Perf Down-Leg Boosters |
| Description_EXT |
Comes With Gaskets and Jet Kit |
| Description_EXT |
Natural Aluminum |
| Description_EXT |
New |
| Description_EXT |
Sold Each |
| Description_MKT |
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! Add up to 25-50 HP with PROFORMs 100% NEW, high-performance carburetor main body (no re-built components). Easy swap-in, swap-out installation utilizing existing metering blocks, fuel bowls, and baseplate. Involves only 14 screws. Has adjustable screw-in air bleeds, high-performance down-leg boosters. Get maximum air flow with no air horn, choke tower, or choke control. Comes with instructions, all necessary non-stick replacement gaskets, and high-performance jet kit. PROFORM is a registered trademark of Specialty Auto Parts USA, Inc. Holley's and Double Pumper's are registered trademarks of Holley's Performance Products, Inc. This product is supplied by Specialty Auto Parts USA, Inc. and it is not endorsed by any other carburetor manufacturer. Technical Note: Main body does not retain vacuum advance port in original metering block. |
