65 Barracuda daily driver
The lose contact on the mini starter worried me, so I took the starter out and found the old, clunky one at the far end of the garage on the floor and it looked crusty and not trustworthy, but I thought it was worth giving it a shot. Bolted that in, put the previous carburetor back, fixed some sketchy looking wiring and started the car. I forgot the whiny sound these old starters make, but it didi start! I let it warm up and turned it off. Then started it again and drove around the block for like 10 minutes, parked it in the driveway and turned it off. Then started it again and it worked. Gonna do some more testing before I take her on a freeway, but it actually looks like it might have been the starter.