I'll try what you suggest. I was thinking fuel pump, since it is intermittent and not dead all together. It's been running great till yesterday, then as I described. The carb was rebuilt about 3 months ago, the fuel filter was new then. Points and condensor new at the same time. Fuel pump is older, just didn't replace because it was working ok. I did research the construction of the pump and do see how it can become intermittent before dying. Thanks so much for all your suggestions.