cam
#11
I would stay far away from fire rings, unless you rebuild yearly. O-ring is a better way to go, IMO. A special gasket isn't needed if the gasket does fail. I'm over 50psi boost, ARP head studs, cam, springs, and am not having any head gasket troubles. I also have very low drive pressure for the cost of my system. Drive pressure never exceeds 60psi, and at lower RPM is much lower than boost.
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