90% of no-run and performance problems are electrical, not fuel, at least on old school engines...

I'm not big on throwing parts at a problem as a way to troubleshoot, but based on your description, this would be an exception to the rule.

If it were my car, I would throw a coil at it. This is one component that cannot be tested because--duh--it will always work when testing it. Also, it's a textbook coil failure...