Hi, right quick, does the "batt" light in the dash come on when you turn the key on? If that bulb goes out, your charging system won't work. It sounds stupid, but that bulb completes the circuit. Seen alot of people beat their brains out over that one. Had that issue twice with my '87 GT, so I pulled the bulb and soldered a 1/4" piece of #12 wire across the leads. Haven't had a problem with it since!
