It’s not so rare anymore to see a classic Chevy with a bass-thumping sound system, or to see lighting systems that put out more than the standard 55/60-watt headlamps.
He said, “There is no need to worry about using an underdrive pulley, or an ignition regulator turn-on with Tuff Stuff units.” While some of the concerns were valid many years ago, they aren’t a concern with the alternators that both of these companies produce, all of those concerns were taken into consideration to produce one-wire alternators that would perform at idle/low RPM, and not cause concern for modern one-wire alternators.
What was happening was that a wire was sent to a remote location on the car and it would send a signal back to the alternator reporting what the end voltage was.
If the voltage was lower, then it essentially told the alternator to produce more voltage.
Powermaster has technical bulletins that can help you determine the average amperage load of the accessories in your car, such as air conditioning, auxiliary lighting, high-powered stereos, etc.
Tuff Stuff also has a technical bulletin for installing a one-wire alternator and how to choose wire gauge.