I have a working electrical system !!!!! I got the alarm system disabled, but was still getting occasional high voltage when I had the car on the road, then it would settle down at idle. I ended up replacing the voltage regulator again with a Delco unit and also replaced the external capacitor since I was getting a strange reading on it. While swapping componets out I checked all of my wires again and found the thermo wire to the regulator was changing resistance as I moved it around. I secured the wire with tape and the voltage now normal under all conditions. I'll plan to just change out the wire harness to be safe in the next few weeks.

I want to thank everyone for the help. Thank you Vikki for the wire diagrams, they were a big help in getting the alarm system out of the way. Hopefully I will have some good Fall weather the next few weeks to enjoy the car.