Fittings such as these, for connecting a compressed air line to the spark plug hole for valve support, are available at most auto parts stores. Occasionally it is necessary or desirable to inspect or ...

For mild street engines, stock valve springs are more than adequate. But if you've screwed in a big bumpstick for strip-banging or banzai runnin', then pay attention. Our plan was simple: Install a ...

Sami Allen is the managing editor at Forbes Home, with over seven years of experience in the home space and 10 years of editing experience. Sami Allen is the managing editor at Forbes Home, with over ...