Welcome to the Team Marc!
Ignore everything the person who says it is the distributor overheating ever says again. Unless of course you have a stock 1975-'82 Chevy HEI distributor replacing the points model that was installed new in your car. That and the HEI distributor has had the module replaced at least once without the benefit of thermal grease being put under the HEI module to conduct heat out of the module into the cooler aluminum housing. An overheated HEI module causes misfires and a very low maximum RPM but generally doesn't suddenly decide to stop working.
More likely you have a fuel supply issue. It could be vapor lock (heat related where gas boils in the gas line preventing being drawn into the engine), or a clogged filter (flows for a while as trash builds up on the outside of the filter then falls off when the filter dries out later0, or a leaky fuel bowl in the carb, or a combination of these and other issues.
You have one free AAA road tow left for the fiscal year. I suggest you save it and drive your car to your Chevy dealership to have a trained mechanic look at it. Hopefully they haven't retired off all of the mechanics working there who know about point dwell and how to trouble shoot a carburetored car.