Charging Issues Mechanical Voltage Regulator

UPDATE Finally found a new voltage regulator and installed it yesterday. Everything seems to be working OK now. Battery voltage was 12.56 with engine off. After startup, voltage gradually increased to 14.10 or so before leveling off. Turning the headlights on got the same results. Headlights aren't flickering anymore, and the engine even sounds crisper.
Thanks for the input guys....Larry