Description
Holley 850 CFM HP Main Body is a great upgrade from standard flow main body. This main body will work in place of any 850-1000 CFM mechanical secondary carburetor. Venturi is 1.563 at the top. It comes with .160 Step boosters which help with flow and throttle response. The main body will come as pictured with high flow nozzle screws and #35 pump nozzles. The air bleeds are #72 for the Idle air and #28 for the high speed. Both nozzles and air bleeds are available to purchase for tuning.