Success! Got the motor fired up today and it sounds great other than the carb being pretty iffy. I might try one of those EBay YF knockoff carbs; this one needs rebuilt and the choke needs replaced. But it sounded smooth and had 40psi oil pressure so I’m happy. When I got this the previous guy said the whole car was rewired. Technically it was; it had a new universal street rod harness but it was really a mess with a bunch of wire nuts and THHN house wiring added to it. I decided to redo it; solder and heat shrink the connections and just tidy it up.