Can't get this one solved........67 elky had new AutoZone 715, AC Delco alternator and it won't charge. Lots of little stuff I've addressed, loose connection on the VR-715, solved, iffy body ground, solved, replaced alternator, swapped VR with a known good one. I get 12.25 volts at the alternator and at the battery. Batt. indicator light on the dash. Here's the crazy thing, I played with the ground of the VR a bit, until I pulled the wire off, and the voltage shot up to 18+.......so the alternator has to be functioning, and the voltage reg. has to be functioning. I tracked down a couple iffy grounds and nothing changes. Don't know where to go next...........