1967 Valiant Signet Electrical Proble Please Help I need a Pro

Every thing seems to be wired right. I replace the voltage regulator with one from napa. Seemed to stop cutting out. Today it started again I have a mopar electronic ignition system. And a msd blaster 2 coil. I did notice the car would sometimes cut out and I would have to wait about 4 min to start it. And I noticed that ballist resistor gets super hot. Another thing someone told me to do it get rid of the ammeter and hook up the two wires to each other. This car is a headache.