318 running like crap

I flushed the tank on my 66 3 times before I started the engine the first time. I changed fuel filters 3 or 4 times a summer for 2 summers until I replaced the tank and lines. Every time i drained orange gas out of the filter. When I took the carb apart the jets were almost covered with orange sludge that made it through the filter. It sounds like you have the ignition system back in usable shape. Now it's time to work on the fuel system.