I suspect you have a gas issue. The swill they are calling gas these days really does a number on the rubber of yesteryear. There are rubber hoses in your gas line, and rubber parts in the carb that the new gas will not play well with. Your probably experiencing those rubber parts & hoses starting to disintegrate. I suggest you stop driving it until at least you get the rubber replaced in the gas lines and put a new carb kit in the carb.

There may still be an issue with the points and condenser, but the fuel lines can cause a fire, replace them first. Gene