How to: GM12SI alternator on a small block

Yeah, I'm aware that its easy to remove the bolts and change the clocking...but since I was buying one, I figured i'd get one that I didn't have to mess with.

I used the blue wire to cover the voltage drop in the ancient wiring harness. If I hooked it up one wire style I'd loose about a volt, and the lights would be dimmer...the wire was there, so I used it. What you're saying is always an option though, though for me i'd keep that to the tractors.

While I also figured I could get by without the resistor, if the regulator failed, it would have less current passing through that circuit - and maybe extend the driving distance...using ohms law: V=I*R. The original GM cars had a 194 light bulb there, so simulating that couldn't hurt.