[PDF] DISTRIBUTORS & HEI INSTALLATIONS - GMCMI based on the GM HEI module will allow you to get a replacement module nearly anywhere! Notes on wiring for a "points" distributor; There are normally two wires on the "+" terminal on the coil. One is the "resistance" power wire. The other is a wire that supplies power from the starter solenoid “R” terminal, it supplies power only when Related searches for hei module wiring diagram gm hei ignition module wiringgm hei module wiring diagramhei distributor ignition module testgm hei ignition wiring diagram4 pin hei module schematicgm 8 pin hei modulehei module testhei coil wiring diagram