I may have found something. I was checking for loose connections in the areas I was testing at the beginning, when the fuel tank install didn't work. I found one of the three wires on the distributor that my Dad or one of his helpers made when they relocated the electronic module to the driver's side fender was loose. That made me recall that it had come off, back at the start and I just reached in a plugged it back in by feel. Well, today I pulled it loose and found it was really easy to plug the small male solderless connector in to the wrong place. it was real easy to stick it into the gap between the brown insulator and the distributor case and not where it should go. I had to use a mirror and a flashlight and it took multiple tries to get the little spade go into the female connector in the distributor. I had the engine warming up, prior to this, to run the diags again, so I can't say for sure it made an big change, since the big symptoms happened when it was cold. It did fire up and let me rev it, when it was plugged in, I'm going to see if I can come up with a better way to plug into the bottom of the distributor. Something where all three get plugged in together and stay spaced apart and snug.
I'm hopeful about this, since it ran better before I started wire tracing way back when. I'll look up what the far left of the three pin, as looking at the distributor from the front does and see if it would cause my issues.
I'll still run the above mentioned troubleshooting, since the RPMs were not consistent.
