73 Dart Alternator doesn't show charge anymore.

SputnikOne said

Some other hints while I can't really troubleshoot right now, before when I bought the car it had some other strange electrical bugs, like the blinker pace speeding up when I stepped on the gas, or slowing significantly with the lights turned on, the hazards only work with a blinker turned on. The pump was wired in a way so that it running on whatever key position is just before the ignition position, with all the other accessories.

Click to expand...

Might have been drawing enough power that at the alternator could not supply the system at 14 Volts, but as engine speed increased the alternator could supply everything.

This where having a handheld voltmeter in addition to the dash ammeter can be helpful.
if the ammeter is showing increased charging with increasing engine rpm, then the question is whether This is because the battery was low, or because the alternator is not being properly regulated.
Checking the voltage with the engine at higher rpm will show whether the regulator is providing proper control.