Holley Carb Diagram
Holley offers a ton of great technical information on the support section of their website.
Holley carb diagram. Holley carburetors powered every monster energy nascar cup team and nearly every nhra pro stock champion for four decades. Idle circuit while the cfm double pumper offers a four corner idle. Overview of 4150 mechanical secondary. Factory refurbished carbs have undergone a thorough inspection.
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. We are making them directly available to the public. Hg 85 indicates 8 5 in. Congratulations on your holley carburetor purchase.
Carburetor rebuild kit selector. Each holley power valve is stamped with a number to indicate its vacuum opening point. The holley technical resource library. Overview of 4150 vacuum secondary carbs click here to view.
Cover 157 hot idle compensator assembly 158 h i c. Whether you re looking for exploded views tuning tips rebuild information or more check out holley s in depth carburetor repository. From replacement fuel bowls to power valves and jets and everything thing in between. 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.
Here are some additional resources for you to see on holley tv. For a visual guide on locating your list number as well as help identifying other brands models check out this video. Holley carburetor numerical listing. Holley offers a wide variety of replacement and performance enhancing components for your carburetor.
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. 75 indicates 7 5 in. Small adjustment screw that is a stop for the secondary throttle blades. Cover screw 156 h i c.
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. For example the number 65 indicates that the valve will open when engine vacuum drops to 6 5 in. Holley has been the undisputed leader in fuel systems for over 100 years.