72 Dodge Dart Slant 6 Trying to figure this out. My amp gauge is high charge when running. Battery charges over 15v when revving. With motor off key in run voltage at battery 12.6. Voltage at ballist resistor/voltage regulator 11.4. If I unplug the ignition box connector which is on that same wire I get 12.6 at voltage regulator. Is this normal? A sign of bad ignition box? I put a ground wire from ignition box to battery. No change.