In a time not long past there was that guy down the street from you--that special car-crafting guru who could tune an engine by ear. He was revered by the local gear heads for his uncanny knack for ...

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 ...

For nearly 100 years, a carburetor has been at the heart of almost all internal combustion engines. Only in the last 20 years or so have car makers used electronic fuel injection exclusively on ...