FACTORY GM HARNESS (UNPLUGGED FROM COIL) BLACK ORANGE RED MAGNETIC PICKUP NOT USED WHITE MSD TO GM HARNESS PN 8876 TM TACH OUTPUT ION IGNIT MSD 6AL PART NO 6420 Serial No 090499 Multiple Spark Discharge TO BATTERY+ TO BATTERY UNIT CABLE HEAVY RED HEAVY BLACK MSD BLASTER GM DUAL CONNECTOR COIL PN 8226