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 ...

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 ...

The last time we talked about carburetors, we focused on getting the idle mixture and speed in line. But that’s not all that a carb requires of its owner. Having your idle in line doesn’t mean the car ...

When people talk about the air/fuel ratio of their engine, do you get confused? Do they really know what they're talking about, or did they just hear someone mention it in another conversation?

The carburetor was invented well over a century ago and served the internal combustion engine well. Later, electronic control was married to carburetors with so-so results. Okay, the results were ...