1946 Super Deluxe Voltage Issue Overcharging

[MattDeAmicis]

Having some voltage issues with my 46 Super Deluxe. 6 Volt positive ground, rebuilt generator, Stromberg E Fire Electronic Ignition, Pertronix Flamethrower 1.5 ohm coil, Optima Red Top 6V Starting battery. The car was stumbling on acceleration. Put a meter on the battery and only got 6.2 volts or so at idle and also at 1500-2000 rpm. Tested the generator by removing the field wire from the voltage regulator and attaching it to the armature terminal and got a high reading on the ammeter. Concluded that the voltage regulator was bad. Got a new Echlin regulator from Napa and eliminated the stumble. Car runs great now but when I put a meter on the battery at idle it is showing 9 volts steady. The ammeter reads about halfway between the center and CHG. Any suggestions how to fix this? I don’t want to damage my generator or electrical system. Thanks-Matt