Headlights

hey knuckles, plain and simple your voltage reg is not keep the voltage at 12-14 volts it is allowing it to go higher..... Change out the reg and you'll be fine
it's called volts per hz or rpm change. the reg should never let it go above,, say 14.5 but you could be running as high as 20 volts.

If you have a seperate regulator then change it, if the reg is incorporated in to the alt obviously chang the alt

racy.:read2: