Holley 850CFM M/sec Carburetor #80804RDX

Holley HP™ Carburetors have been the standard in racing Carburetors for nearly two decades. So how do you make them better? You make them 38% lighter, increase the fuel capacity by 20% and add 30 other new features.

*Requires 9.75–inch spread fuel line.

- 100% Holley – Made in the U.S.A.
- 97% aluminum construction
- 38% weight savings
- 20% more fuel bowl capacity

UPDATED MAIN BODY DESIGN
Air bleeds moved outward to allow a smoother transition of airflow from the top of the carburetor into the venturii
Integrated idle bypass valve eliminates the need for holes in throttle plates and allows for proper adjustment of idle while maintaining correct throttle plate to transfer slot relationship. Helps maintain good idle control when using radical camshafts.
All unnecessary mounting bosses removed for a smoother, cleaner appearance
Contoured hex head squirter screws for streamlined airflow

ORIGINAL HP FEATURES
Power valve blowout protection
4-corner idle
30cc GLFT accelerator pumps
Screw-in air bleeds
Dominator style fuel bowls allow plumbing from either side
Symmetrical venturii bores
Spun in boosters
Notched floats and jet extensions
Stainless steel throttle plates