NOTE: Due to the natural color variations of the dichromate plating process, the plating color may vary from casting to casting (within a carburetor) and from carburetor to carburetor. This is considered normal and is not a cosmetic defect. If you desire a carburetor with no color variation, please shop our black and shiny finish carburetors.

Performance upgrade for stock to mildly modified vehicles

Universal calibration for easy bolt-on performance

Factory preset electric choke for easy startups

Vacuum secondaries for use on wide variety of vehicles. Compensate for all vehicle weights, gearing & transmissions to allow smooth opening of secondaries.

Dual feed fuel inlets for constant high volume fuel delivery

Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.

Power valve blow-out protection

100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Product Description:

Carburetor

Classic

Model 4150

4-Barrel

650 CFM

Square Bore

Electric Choke

Vacuum Secondary

Dual Inlet

Aluminum

Gold Chromate

Sold Individually

For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.