needed high amp alternator

I use a GM CS144 alternator on my '70 E-Body that's been mildly worked over a bit (ie) rewound, heavy duty bridge rectifier and upgraded wiring to handle it. It's basically the Mad wiring with a few deviations.

The alternator puts out 115 amps at an 850 rpm idle and over 220 amps above a fast idle. It pretty much bolted on with a $35 or $40 bracket adapter. I do have a single pulley driving it, and that is ultimately the limiting factor for output, but my system really doesn't need that much total output. I was after the higher idle output it easily provides.