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 this ...

When General Motors introduced the High Energy Ignition (HEI) distributor in the mid-1970s, it was revolutionary. So much so that it still has a strong following among today's hot rodders. Like other ...

What best-dressed Target motors should be wearingâ Edelbrock dual-plane intake. Carter carb, and GM HEI ignition. Note how new No. 2101 intake runner provides clearance for large HEI distributor cap.