I am running a GM performance parts mini starter. Those killer headers come with a compromise. The header and starter have to go on together. I hope to do it only once so I am taking every step to protect that little sucker. I moved the starter as close to the block as possible and of course the shield hits the block. I ground it down so it does not touch the block. I don't want any noise. I will also run my starter wiring and probably atleast one spark plug wire through the shield for extra protection.