Trailbeast,
It is OK, now I have no idea what you are talking about.
Sorry :D
The GM 8 pin module is not a controller. It is a VR interface with dwell control and current limit, all this is analog circuitry. There is not a micro-controller inside. To add a timing controller is possible, but using it on a mechanical advance distributor would be silly.
I know this, and never meant to sound like I was suggesting the two together.
While some think the Mopar box is an ECU, it is an VR (pick-up sensor interface) and an output transistor to drive the coil. It does not incorporate the dwell or current limit control. It requires a ballast resistor to limit the current and the excess dwell wastes energy and heats the coil. The GM module is an advantage over the Mopar box. In your present application, it is running in the limp home mode, in conjunction with mechanical advance.
