1967 Valiant Signet Electrical Proble Please Help I need a Pro

Hmmm, kind of confusing but I'll take a crack at it. A 67 Valiant did not have a voltage gauge but it did have an Ammeter which measures current. If you disconnect it you're dead in the water so keep it hooked up and be sure the nuts are tight on the back of it. You'll have to measure battery voltage while it's running... should be about 14.2 volts at a fast idle with everything on. Start there to see if you have a charging problem or not.