The GM HEI (High Energy Ignition) electronic distributors have a reputation for hassle-free performance. Used in GM rigs from its inception in 1974, the famed HEI can be retrofitted to almost any GM ...
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 ...
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