[KirkV]

So my optima was having issues starting the car at 3.5 years old. I took it in for testing and they said it tested good but was low on charge. I took the alternator in for testing and they hooked it up wrong to begin with but then remedied it and the unit tested good on their machine.
At that point I bought a new lead sealed battery and installed it and started the car back up.
I found the amp meter running high at higher rpm’s and shut it back down.
I have a external voltage regulator and figured I had lost it again as I had many years ago.
When the car is at idle the battery voltage is about 12.8 but when I put any rpm’s to it it can soar to 16.6.
The amps also can go to 25-50 depending on rpm’s
I unplugged the voltage regulator and put a new one on and it still is doing the same thing.
I have a 351 bored to a 393 stroker with a 4 wire hookup at the alternator and a 4 wire hookup at the regulator.

Any ideas on where to test first?
Thx Kirk