Engine performance is like a complicated formula in which each individual part plays a role in the final answer. Some parts of the formula affect the final outcome more than others. The valvetrain ...

It may have been born on the wrong side of the tracks, but our "500 HP For Cheap," 383ci small-block Chevy (Sept. '06) has shed its humble origins and put on some class-namely, the 600hp class. Ace ...

There is no doubt that the stud-mounted rocker systems that are commonplace on Magnum small-blocks are simpler and easier to work with. But there's a reason why any high-end race team, whether it is ...

There’s a very distinct trickle-down system that flows from the racetrack directly to the street. Everything from intake manifolds to the latest exhaust header technology is fair game, and this ...