Main Circuits-or a Trip Down Venturi HighwayIf there is one part in the world of high performance that everybody knows, it has to be the Holley four-barrel carburetor. The Holley has evolved through ...

Holley stands behind their products. As the world's leading manufacturer of performance carburetors and carburetor components, they want the customer to be satisfied. That's why you'll find a service ...

With the latest Truck Avengers from Holley, virtually any engine size from six cylinders all the way up to monster big-block V-8s can be accommodated. Available to flow air at 470, 670, and 770 cubic ...

So you think you know how a carburetor works? Let's find out. Can you detail the major players in the idle circuit? What part does the power valve channel restrictor play in the main metering circuit?