If you’re running an HEI system on your vintage Chevy, you’re only just beginning years and years of faithful service once you get this integrated ignition system installed in your vintage ...

Our test engine is the same Chevy small-block used in the ignition test, so almost all of the stats for the engine are the same as listed there. The Performance Distributors HEI ignition was used ...

Introduced more than three decades ago, GM's HEI ignition system has capably powered tens of thousands of vehicles over the years. The setup has remained popular with performance enthusiasts to ...