There are few things in an engine that are more critical to its behavior and performance than the camshaft. Sure, headers, a better manifold and carburetor can also contribute to improved driveability ...

If the cylinder heads represent the aerobic side of an engine, and the rotating assembly is its muscle, then the camshaft must be the brain. The cam is the component that signals when the valves open ...

Most enthusiasts start with the basics, which usually include a cold-air intake system, high-flow cat-back exhaust and mandrel-bent tubular header. These simple bolt-on upgrades can easily increase ...

A. Here you can see the relationships of base circle, lobe lift and valve duration. During times when a valve is in its closed position, follower (or lifter) travel is along the base circle surface of ...