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 ...

Harley-Davidson has used the 40mm Keihin constant velocity (CV) carburetor since 1988 on Sportsters and introduced them in 1990 on the Big Twins. The 1988 model differed from the 1989-and-later carbs ...

There will forever be something cool about a simple carburetor under the hood of your hot rod. Even though in these days of smart phones, iPads, and specifically in our world, self-learning EFI and ...

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 ...