Run Stand

Here's the basic module

You must hook the distributor as pictured or you will cause timing issues. Some (a few) distributor pickups were evidently wired backwards, so if you have timing / rotor phase problems, try reversing them Be sure to break the plastic tip off the bottom of the module, mount it flat on a heat sink and ground.

One nice thing about the GM module is that if you leave the switch on, they do not draw current (heat up the coil) when not running

Sorry, I would give credit to, but do not remember who drew this "fancy" diagram.