[77SceptreOB]

Thanks for the advise guys!! Good stuff. I think it could be fuel related or ignition related, or maybe a combination of both.

So, to eliminate some of the fuel concerns, I'm going to replace both fuel pumps and the fuel filter. They aren't expensive ($50/ea for fuel pumps & $10 for the filter). They probably need replacing anyway, as they are 20 years old. Then we will see where I am, hopefully fix the problem.
But if not, at least a few items have been eliminated. Then it will be on to ignition issues.