Top off your your engine with an American icon - the Holley Model 4150 Double Pumper. As a staple on hot street cars and race vehicles, this four barrel carburetors dual accelerator pumps provide additional fuel under initial acceleration for awesome tire-turning performance in lighweight vehicles and vehicles with manual transmissions or low gearing. Plus, with mechanical secondaries, your foot directly controls the opening of the secondary throttle blades.
With features like dual metering blocks, center hung floats, 4-corner idle, and dual fuel inlets, it's no wonder why Holley is #1 in performance fuel delivery.
- Mechanical secondaries
- Dual accelerator pumps
- Manual choke
- Four corner idle
- Dual feed fuel inlet
- Center hung floats
- 1 timed (spark) port, 1 full vacuum, and 1 PCV port
- Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
Holley 750 4 Barrel Carburetor Installation Instructions (PDF)