When it comes to carburetor tuning, there is literally "no substitute for experience." The most successful tuners possess a near-instinctual "feel" for fuel system problems, based on their years of ...

It's clear that winning HOT ROD's AMSOIL Engine Masters Challenge with a carbureted engine requires more focus on the area under 4,000 in the rpm range than we could imagine. We were expecting a ...

With our M715 sucking down fuel at a rate of 4 mpg, we knew we had to do some-thing. We were running a Holley 670cfm Truck Avenger on our Chevy V-8, and thanks to an AEM wide-band O2 sensor, we knew ...

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 ...