Hey Man!!!!!
If you need a running Z to compare to you are welcome to look at mine. I could come over sometime. I finally got mine running, still have a couple of things to fix: 1) Short in the ECU main plug, have to take apart and repair
2) Not charging the car, guessing it is the voltage regulater/charging relay, gonna swap one from my 77 and see if it changes. Found the short today during FAY, hehehe, gotta love and awning, anyway send me a pm or email if you need to see mine to trace wires and maybe we can work something out!!!