Carburetor, Holley, Classic, 650 CFM, Electric Choke, Vacuum Secondaries

Universal 650-CFM Classic 4150 Carburetor (Electric Choke) by Holley®

Four-barrel carburetor pairs vacuum secondaries, dual fuel inlets and an electric choke.

This Holley® Classic 4150 four-barrel carburetor is rated at 650 CFM for stock to mildly modified gasoline engines with a compatible square-bore intake. Its vacuum-operated secondaries respond to engine demand rather than opening directly with the pedal, while the factory-preset electric choke helps cold starting. Dual fuel inlets serve the center-hung fuel bowls, and externally adjustable floats simplify fuel-level checks. The gold-dichromate finish provides a classic appearance and corrosion protection. A power-valve blowout-protection feature protects the fuel-metering circuit; confirm throttle linkage, kickdown provisions and emissions legality for the vehicle.

• 650-CFM, 4150 square-bore four-barrel • Vacuum-operated secondary throttles • Electric choke for cold starts • Dual-feed fuel inlets • Gold-dichromate corrosion-resistant finish • Externally adjustable float levels