Time to Fix It Right

Get a headlight relay kit from Crackedback on this forum to ease the burden on the electrical system. Lights will be brighter from less voltage drop and you'll get better voltage at the ignition module for better drive ability. Probably should bypass the feed connection through the firewall and jump the ammeter as well.
Carb needs to be tuned or rebuilt. Easy button is a new AVS2 or Street Demon if you have $350 to throw at it
Sounds like it needs a timing chain if the timing is bouncing around. Maybe a distributor rebuild.