Hi Miked,

That ampere gauge in your van is not compatible anymore to your 110 amp alternator. Since it can only read up to 60 amp when you start your engine or rev up with no load it will hit the +60amp reading very easy. Worst case it will burn the ampere gauge because it cannot handle the load. So it would be best if your remove the ampere gauge.

It would be best if you use a voltage meter gauge instead. Yup your voltage reading is on the safe side. Over voltage would be 15 ~ 16 volts