I finished the wiring - well mostly, still tracking down a few gremlins.
I don't yet have the radiator installed - but I desperately wanted to fire up the engine. The wiring is good to the best of my knowledge, considering the harness is fairly universal to fit every combination of components. From the different types of alternators to starters. I of course chose the simplest combo being a 1 wire alternator and 1 wire starter and MSD ignition system. Took a bit to figure which wires go where and which I didn't need.
moment of truth - turned the key and ..... nothing. So I went and mowed the lawn to sort it out in my head. I know the MSD works because we used it at the dyno, then I sent it in for warranty issue, it came back with a clean bill of health. Since I didn't have any clicks or anything, that meant the starter wasn't engaging. I had two choices for the ignition wire to the starter solenoid. And, there was another loop I removed for the neutral starter switch (which my transmission doesn't have). I checked the starter switch wire and yes, there was momentary power when the key was turned. I wired them together, pulled the coil wire, and yes - the starter engaged - I did this for a few minutes to prime everything. Attached the coil wire and VAVOOM! Started right up.