Voltage @ cruise

I have been having electrical issues as of late. (Woo-Hooo!) On the Magnum. ("79)

There also could be a fuel delivery issue as well. I just have not gotten there yet. But anyways. I was going though a bunch of voltage regulators. The Alt. was hammering the battery with a full hundred amps.

A loose connector on the voltage regulator was replaced and the issue has been good so far. But I installed a gauge to see where the voltage is at. just incase it happens again. The smell of cooking battery is bad and offensive not to mention, well, too late!

Now I cruise around at 15 volts. Is this anygood?

Part of the inquiry is the inabilty to drive above 55. (LOL, this sucks!)
Hence a fuel delivery thought.