FloatThe float maintains a constant level of fuel in the float bowl, and while it seems to be a simple system, it has to function correctly to maintain the proper air/fuel ratio. If the fuel level is ...

Compare Holley and EVIL ENERGY 2-barrel carburetors. Learn which carb delivers better performance, efficiency, and value for your engine setup.

There are at least two different primary metering block gaskets for a typical 4150 and many 4160-style Holley carburetors. We’ll use the very popular 600 cfm Holley vacuum secondary, commonly known as ...

The choke valve in an engine's carburetor, whether it's a Holley carburetor or another brand, helps a cold engine start by restricting some of the airflow into it. When the engine is cold, the choke ...