high voltage stock 6.1 alternator

14.8 Looks good yes. But this is in the car electric, junction Point at start Relais. The battery is receiving 15.5v same time. If lights on even more.

Anyway, it seems the Problem has been solved by itself this friday where i did a 150 mls trip to the drag Strip. Instrument at the das showed constant 14.2V. Guess that must be arround 14.8 at the battery if i still have this .5v drop...