At the O'Reilly Auto Parts Fall Street Machine Nationals in Springfield, Illinois, last year we spotted a dyno sheet on the windshield of Steve Engberg's '69 Mustang Mach 1. What demanded closer ...

While were anxiously awaiting hardcore performance versions of the 2014 Corvette Stingray such as the inevitable Z06 (Z07?), tuning shops are hard at work finding ways to make the standard car go as ...

Nitrous oxide. It's the magic in a bottle that makes engines come alive and scream for mercy. Adding the juice can give your pony a 20-horsepower kick in the tail or 800-additinal stomping ...

In drag racing, performance gains usually come in small increments. Dropping over a second from one run to the next is fairly unheard of—but in our case, it really didn't take a whole lot. Now don't ...

POWER! It's all about POWER! Captain Kirk was always on poor Scotty's case about "more power," and Tim Allen's life seems to revolve around a never-ending search for it. For hot rodders, more power ...