Hard Starting

Me hating the bulkhead idea, I would take the plugs out of the firewall and clean the heck out of them, ballast, ecu, alternator and voltage regulator. Make sure it's all clean, and tight. You can also give straight battery 12v to 'in' of the resistor and if it fires, you likely have a draw somewhere between the battery/firewall/ignition/firewall/ballast