Proform Engine Carburetor Main Body for Holley Carbs
Get the carburetor components your need for better performance with Proform.
- For Holley Carburetor Part Numbers 4777, 4778, 4779 and 4780
- Constructed from aluminum, these direct replacement components turn a street carb into a high-performance carb in as little as 30 minutes
- Add up to 50 HP
- Talk about ease of installation, simply swap in- swap out using your existing metering blocks, fuel bowls and baseplate
- Involves only 14 screws
- Main body does not retain vacuum advance port in original metering block
- Promotes outstanding air flow with no air horn, choke tower or choke control
- Comes with instructions, all requires non-stick replacement gaskets and a high-performance jet kit
- Pairs perfectly with Holley Carburetor Part Numbers 4777, 4778, 4779 and 4780
- The Pep Boys say: “Dump that boat anchor you call your main body with a Proform aluminum one.”
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.