It's delivering spark to the plugs so I know it's working, but it's odd that whilst I crank the voltage drops and it can't ignite. I've tried supplying it with 12V from the "START" position of the key barrel and it wont ignite then and I've tried 12V from the "ACC" wire of the key barrel as well. Should I wire it up too the "HOT" wire from the fusible link so I know it getting 12V at all times or is there a better solution to this?