4150 Double Pumper 600 CFM Carburetor

The Holley Double Pumper Carburetor is a 4-barrel, 600 CFM Model 4150 with a square bore. This carburetor features mechanical secondaries and dual accelerator pumps for enhanced performance. It includes a manual choke for precise cold start control and dual feed fuel inlets for consistent fuel delivery. This model is wet-flow tested by Holley technicians to ensure it is ready to run out of the box.

It is designed to replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with a 5 3/16" x 5 5/8" square bore flange bolt pattern. An adapter may be needed if you have a spreadbore style intake manifold. The carburetor is intended for lightweight vehicles with manual transmissions or automatic transmissions featuring a high stall converter and low gearing.