Is there an easy way to tell if you alternator has a voltage regulator built in? I know the original one in my 65 didn't have one (internal regulator) and the voltage regulator is still bolted to the radiator support. But when I got a new one from Autozone, it charges up the battery and everything without being hooked up to the regulator (no wires were running from the one that was in the car when I bought it). Of course, Autozone doesn't know if it is internally regulated or not. Any help is appreciated. Thanks!