I was trying to avoid pulling the head, Although is seems like its the smarter thing to do. Im assuming the timing chains are fairly easy on these cars. What head gasket do you guys recommend, Im going for 350 WHP and maybe more in future with Inake manifold and bigger injectors. Would like to be safe. We have a good machine shop around here that I trust, I will let them examine the head and see what they think they can do for more power.