Q: Last month we described how to remove a first-generation (’74-’80) High Energy Ignition (HEI) distributor from your Corvette, disassemble it, test its individual components, and rebuild it.

Originally, the HEI system was fitted with a four-pin module. By 1978, it had a five-pin unit. Seven and eight-pin modules were more a computer-controlled element that came around in the 1980s.

Since an HEI uses an internal coil, ... Our replacement components included a new performance coil ... (PN 362), and a Hyfire HEI module (PN 699). So, if you burn a coil, chip the rotor, or ...