I started working on cars before I could actually drive them . . . legally. I spent countless hours learning the intricacies of things, such as how much voltage it takes to make your arm go numb by ...

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 ...

Wideband O2 sensors play a pivotal role in the realm of automotive tuning, providing precise measurements of the air-fuel ratio necessary for optimizing engine performance. Unlike their narrowband ...

A once-in-a-lifetime opportunity befell three '12 HOT ROD Power Tour participants—the chance to have Holley Performance Products' Senior Product Manager and carb tuner extraordinaire Jay McFarland ...

A lambda probe (or oxygen sensor) can be found on the exhaust system of most cars running on unleaded fuel. Having reached its normal operating temperature (of about 600 degrees Celsius!) the lambda ...

Tuning a carburetor to supply an engine with the correct jetting-air/fuel mixture has always been a job that almost impossible for most hot rod owners and tuners. In the past, most performance engine ...