Like Knox, I would focus on the carb…A can of carb cleaner and a gasket set does not result in a “rebuilt” carb…
The carb should be completely disassembled, main jets removed, everything, and soaked in a can of “cold parts cleaner” for several hours. Then washed in hot water, then blown out with compressed air, then carefully reassembled with a new carb kit…See how it runs then. I would hold off on the “rebuilt” distributor…One thing at a time…