1969 Dodge Dart Engine Stutter

So I just tested this out. The reading started off about 13.80 and climbed to 14.18 right before I shut it off.

She sounds great with the VR out of the loop. No stuttering.

I just tested this again but stepped on the gas. The reading hit 17.45 at cruise speed. The difference in how the car is running is massive. I was also able to start it up without a jump which is a first.
You have a VR or wiring problem. Or both the alternator is fine.