my nightmere (msd)

Hey Matt make sure the 12V switched wire you have the MSD hooked up to is actually getting 12V when you are cranking. I had mine hooked up like that and it wouldn't work cause the blue wire coming from the factory harness wasn't throwing 12V when the starter was cranking. I am not running the ballast resistor either......I also use the MSD billet dist too so that might make a difference.