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 ...
The reasons for replacing an early points-type ignition system with a GM High Energy Ignition (HEI) system are endless. Not only will it clean up the engine compartment by placing the coil on top of ...
It wasn't all that long ago that GM engineers designed the original HEI system to replace the decades old points-type ignitions. In the mid-'70s, leaner mixtures demanded greater voltage and more ...