Continuing with the alternator conversion, I have the 10SI physically mounted (loosely) and am beginning the wiring by removing the brown wire coming from the idiot light and wiring it to the #1 terminal of the 10SI's pigtail. The #2 terminal just jumpers back to the BATT terminal of the 10SI. (I have read that this is optional, but my pigtail came with a ring terminal to attach to the BATT terminal, so might as well.) The ground wire from the old regulator isn't used and I removed it from the harness. I replaced the 14 gauge wire from the positive battery terminal to the BATT stud on the 10SI with a 10 gauge. Ready to tighten up the bracketry I realized I needed to trim the top bracket by an inch and a half. Easy. Then she was finally all bolted down solid, wires routed and wrapped, ready to test. Key on, got my red "GEN" light. Turned to start, light went off and stayed off as the engine caught. I didn't check the voltage but I didn't need to. The windows now zoom up and down like they hadn't before... The juice is in!