Yea, im not sure that I will beable to get mine of with out removing the header. I will say that in my fathers car, with the same valve train, we rarely have adjustments to make to the rockers when we check them, i hope the same plays to me as well. At first it will be a son of a rich, but we will see. He also spins his to about 7600 and im gonna be around 6600 so hopefully that helps some