12v Palm Beach Buggy 351 Windsor Alternator and voltage regulator issues

We have a swamp buggy thats been giving us overcharging issues. Dual battery setup-Blue tops, Napa/autozone standard Voltage regulator, and an old timer re manufactured Mastercraft 1g alternator.

idle is near 12+- volts and with RPM we peak on the meter at 16, but at the alternator we are putting out 17+.
it has fried a battery and swelled another.
brand new batteries and VR, no dice.
new Ground strap on VR and Alternator, no dice
New alternator, No dice
Rewire, No dice

We are going to attempt a one wire alternator with built in VR, but we arent sure what will happen.




We are eating up batteries and replacing voltage regulators to no avail.
anyone have any tips on overcharge issues?
Only a few LEDs and no sound, could power be under utilized? What about throwing on halogenlights and a fridge?
BTW Florida aint so bad.

BT522451522450522454522453522452
 
Since it is a 351W do a swap to a quality 3G alternator. While it is not truly a one wire swap it does only require one wire that is triggered by 12 volts ignition on switch plus the battery cable.
 

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