Holley Carb Diagram

Holley has been the undisputed leader in fuel systems for over 100 years. If you have questions about our products need a part recommendation or just cant seem to find what you need you can contact our tech support online and receive answers by e mail. Carburetor rebuild kit selector.

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Factory refurbished carbs have undergone a thorough inspection.

Holley carb diagram. Overview of 4150 mechanical secondary. Each holley power valve is stamped with a number to indicate its vacuum opening point. Holley carburetors powered every monster energy nascar cup team and nearly every nhra pro stock champion for four decades. Congratulations on your holley carburetor purchase.

Whether you re looking for exploded views tuning tips rebuild information or more check out holley s in depth carburetor repository. Holley offers a ton of great technical information on the support section of their website. Holley s kit is simple to install using a standard tps sensor adapted to follow the primary throttle linkage movement but this kit does require a carburetor using an electric choke. Hg 85 indicates 8 5 in.

This allows you to get a great deal on a like new carburetor. 147 secondary power valve assembly 148 secondary power valve gasket 149 secondary metering body gasket 150 secondary metering body assembly 151 secondary metering body plate 152 secondary metering body plate gasket 153 main metering body plugs assembly secondary 154 secondary metering body screw 155 h i c. Overview of 4150 vacuum secondary carbs click here to view. For example the number 65 indicates that the valve will open when engine vacuum drops to 6 5 in.

75 indicates 7 5 in. Holley offers a wide variety of replacement and performance enhancing components for your carburetor. Idle circuit while the cfm double pumper offers a four corner idle. Here are some additional resources for you to see on holley tv.

From replacement fuel bowls to power valves and jets and everything thing in between. Cover 157 hot idle compensator assembly 158 h i c. For a visual guide on locating your list number as well as help identifying other brands models check out this video. We are making them directly available to the public.

Now holley efi products power these cars and are dominating the performance world. Small adjustment screw that is a stop for the secondary throttle blades. The mechanical secondary carburetor is best on a lighter car with radical camshaft and a lower gear and manual transmission or on a car that is going to be used for racing purposes. The holley technical resource library.

Almost everybody has a holley carb but not everyone know how to tune them we show that everybody knows it has to be the holley four barrel carburetor. Cover screw 156 h i c. Holley carburetor numerical listing.