I'm pulling my intake off for my IMRC deletes. I want to clean the injectors (change screens, o-rings and pintle caps) Now sure if they have the one hole pintle or what? Should I just buy FRRP 4 hole design injectors or would I be wating my money on a bolt on 96 cobra? Motor has 55kmi so the injectors aren't terrible. I have the entire kit to "fixem up" What should I do?