It’s a bottom bolt on the distributor. The other 2 are secure. Fired right up today and ran smooth as butter. Did have some exhaust fumes, probably because I reused the exhaust manifold gasket. Bled the cooling system with the spill free funnel (that I purchased because of one of your videos way back) and he (my son) has put about 50 miles on it with zero problem.
Service manual calls for 16° +/-2° for ignition timing and this one is at 10° according to my 30 yr old timing gun. I found the blue connector under the obd port behind a lower trim panel. I didn’t have time to remove the trim and couldn’t get the connector apart but I’ll try again Saturday.