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2seater you were at Kendalls with me when we fired up the Red after the engine rebuild. We decided to use the 5000 mile fuel rail and injectors instead of the Red's original fuel rail and injectors. Car would barely run and start. Swapped out the 5000 mile injectors and installed the Red's. Should have done the rail as well as I dealt with dirty injectors for some time after that as the rail was also gunked up. A lot of issues can be "hidden" from a car that has been sitting...

Is a whole diagnosis tree in the Factory Service Manual on "Cranks but does not run".

I went back over the two different but related threads. It appears the apparent issue keeps shifting but some things have never been answered, primarily the crank sensor test now that it was in a no start condition, or simply is fuel or spark lacking? Since the car sat for many years, I would guess there are some items that haven't yet failed or have been masked by apparent ignition issues. Basic things like fuel pressure to start with. Long term storage without being prepped could lead to sticking, non operative or poor spray pattern from the injectors. I would guess it is pretty frustrating to change parts, supposedly new and improved, and yet have worse operation, or none at all. Remanufactured parts should be better than new, but they are made from something that was suspect in the past. That ECM hasn't been produced new for decades. You really need a proven ECM and ICM/coil package to swap in if this continues. It doesn't have to be Cali compliant just to rule out or confirm we are looking in the right place.