Holley came out with the first modular carburetor, the 4150, back in '57. By '65, the 100,000,000th carburetor came off the Holley assembly line. Today, Holley still makes the 4150, heck, it even ...

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 ...

I have a Holley four-barrel carb I once bought at a swap meet that's leaking out of the tube that transfers fuel from the front side-hung float bowl to the rear side-hung float bowl. I want to fix the ...