What is a 4150 style carburetor?

The 4150 carburetor was first introduced for the 1957-58 Ford Thunderbird. Often referred to simply as the “double pumper,” the 4150 and 4150-style carburetors fuel-feed inlets and a second full metering block on the secondary side, giving it dual accelerator pumps.

How do I identify a Holley 4160?

The Holley List Number can divulge any and all necessary information to identify the specifications for your carburetor. On the standard 4150/4160 models, this number will be located on the throttle lever side of the air horn. Depending on the age of your carburetor, the list number can begin with distinct markings.

Is a Holley 4150 a square bore?

Holley 0-4779C Model 4150 Double Pumper 750 CFM Square Bore 4-Barrel Mechanical Secondary Manual Choke New Carburetor.

What kind of CARB does Holley use?

Holley Carb Identification Holley Carb Identification Holley 1904 1908 1909 1920 1960 1940 1945 AA AA-1 2100 2209 2210 2300 5200 4000 4150 4160 4180 4165 4175 Holley 1909 Parts Page Diagram 1904 1908 Holley 1904 1908 1920 1960 Parts Page 1904 1908 1960 Diagram 1920Diagram 1931 Holley 1931 Parts Page Diagram

What do the numbers mean on a Holley engine?

All Holley Main Jets are flow tested and then stamped with the correct number. Each Holley power valve is stamped with a number to indicate its vacuum opening point. For example, the number “65” indicates that the valve will open when engine vacuum drops to 6.5 in. Hg or below. “75” indicates 7.5 in. Hg, “85” indicates 8.5 in. Hg, etc.

How is the flow of a Holley power valve rated?

They are rated in flow capacity ”cubic centimeters per minute” and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main Jets are flow tested and then stamped with the correct number. Each Holley power valve is stamped with a number to indicate its vacuum opening point.

How do I adjust the mixture screws on my carburetor?

A quick reference guide to common carburetor flange bolt patterns. How do I adjust the mixture screws on my carburetor? To set idle mixture screws: 1. Get the engine up to temp. 2. Shut the engine off. 3. Install a vacuum gauge to a full manifold vacuum port. 4. Turn the screws all the way in until lightly seated. 5.