Hi all, I installed an MSD ignition in my '72 Z, and now the alternator is way under-spec-ed. Battery dead after 10 minutes of driving. I installed a new 70amp alternator from z car depot, and have one question about the factory harness. there's a 2 pin harness that runs to the old alternator location. the new has a tab labeled "ignition key on". I believe I'll need to manually wire this lead to one of the two pins of the car's harness. i can't tell if its the yellow wire, or the white/black wir