HEI Distributor Tach issues, Issue has been resolved

Should not cause an issue. Breaker points, HEI, the Mopar OEM ECU, and the so called "ready to run" Chinese dist's using the whatever it is Auzzie module are all negative coil switched ignitions.

WHAT tach what coil and how do you have it wired? EXACTLY. Grounding? Power?

In other words, "no information." (Not enough)