Proform Carburetor Main Body for Holley 4777 & 4779

Direct Replacement Holley Main Body

Add 25-50 horsepower in less than 30 minutes.  Direct replacement, 100% new main bodies have adjustable, screw-in air bleeds and HP down-leg boosters. These are available to fit popular 650, 700, 750, 800, 850 and 950 CFM Holley carburetors.

• Carburetor Main Body - 4777 & 4799
• Converts Street Carb to Performance Carb
• For Holley 650 CFM (Model 4777), 700 CFM (Model 4778), 750 CFM (Model 4779) and 800 CFM (Model 4780), Double Pumper, Mechanical Secondaries
• Aluminum, Silver
• Holley 650-800 CFM 4150 Carburetors
• Kit
• Part Number: 67100C