I recently noticed an electrical problem on my 56 Victoria. At idle, the gen light would glow faintly if at all. However, apon acceleration and cruising at higher rpm's the gen light glows brightly and stays bright consistently until I return to an idle. I replaced the voltage regulator and found no change. I did notice that the new regulator makes a popping sound each time I rev the engine. I checked voltage at the battery at idle and got 16 volts. I know that is too high. I checked for a bad ground by running a jumper wire from the regulator ground to the negative battery terminal and found no change. Is it possible for a generator to put out too much voltage?  By the way, while the car was at idle, I disconnected the negative battery terminal completely and the motor continued to run..