Holley Double Pumper Model 4150 850 CFM 4-Barrel Carburetor - Square Bore - Manual Choke - Mechanical Secondary - Dual Inlet - Silver Valvoline The rotor tip is secured

The rotor tip is secured with a screw for high rpm racing applications

Cover is constructed of molded plastic and provides support for the fuel neck where it passes through the body

Available with press-in or screw-in ball joint option (ball joint sold separately)

Precision formed & reinforced pushrod ends

Holley Double Pumper Model 4150 850 CFM 4-Barrel Carburetor - Square Bore - Manual Choke - Mechanical Secondary - Dual Inlet - Silver Valvoline The rotor tip is securedHolley Double Pumper Carburetor 0 4781S Shiny Finish 4 bbl 850 CFM Mechanical Secondary Model 4150 Manual Choke Not Legal For Sale Use In California Mechanical Secondary Dual Accelerator Pumps Manual Choke Two Corner Idle Dual Feed Fuel Inlet 1 Timed Port 1 Vacuum 1 PCV Port Intended For Lightweight Vehicles w Manual Trans. Installation And Tuning DVD Incl. Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors