The fuel tank was scrubbed, new fuel filter, new fuel pump and new Solex carburetor. The Solex is not a correct replacement but the price was right for a brand new unit.
When we did get it running we noticed about 6 separate radiator leaks so a new one of those was also put in.
Now it starts every time and stays running. Rumor has it it only has 56,000 miles. It certainly sounds good and runs strong