needed:: wiring diagram for HEI IGNITION

Worth mentioning, that in the diagram of the HE18 coil, the two TOP terminals (red) are in reality the SAME TERMINAL

The two bottom---(red) are also the same terminal. In reality, the coil only has three terminals as does any other coil............

hi volt

coil pos

coil neg

Well that made it confusing for most people, but you are right. (the two top ones are 12+ and the two bottom ones are grounds)

Also, as you mentioned there are about 4-5 other designs but the one I showed is the one I use because of the connectors.

Here's one of my kits ready to ship so you have an idea of what you will need as far as connectors and such.