where do you see i can boost 14psi safely on stock internals? i thought 10-12 was the limit. dyno tunned of coarse. if i put a thicker head gasket ima throw a high coolant flow block guard in there too. might as well put in race pistons, rods, the whole 9 yards. guess i'll have to wait a while before that happens. As far as the boost, my waste gate hose blew once cause i had the clamp too tight and i hit 18-20 psi twice. and adjusting my turbo xs boost controller, i've hit 15-16 psi. it also boosts about 1 1/2 more psi on 4th & 5th gear. especially in 5th.