An engine's power production is directly proportional to its air-processing capacity. Internal-combustion engines consume both fuel and air, but the air is far more difficult to ingest than the fuel.

When trying to decide between two camshafts for an engine that will spend a majority of its life operating at low-to-moderate rpm on the street, it's better to err on the side of caution. That means ...

If you own a 1968-'93 carbureted or EFI Ford 5.0L and want 17 more horses, here's the ticket for a lazy Saturday afternoon. It's an easy, low-cost modification that really works and does not hurt ...

Drag racers have been searching for tricks to gain horsepower since day one, and there are lots of ways to do it without spending a tremendous amount of time or money. One of the biggest downfalls of ...