My ampmeter is pegging

Hi All,

I have a question. Last week my 66 /6 strated giving me some headaches.
It would stall out a and skip when idling in drive. And in park, not as much. I was noticing that my ampmeter was excessivly charging when I was cruising along. So I replaced the wires, plugs and rotor. Did comprsession test. After I did the parts replacement, the next day,I was on my way to the Endicott Auto show in MA. and it was running great. then and I was taking the turn into the show the meter started pegging again and it start skipping and it wanted to stall in drive.
My question is. Could the voltage regulator cause this symton?