I'm pushing 277hp/257tq at 10lbs on a built block/head. Martin didn't want to push to extravagant because I have a stock head gasket and OEM studs. I went w/ an rb flywheel and n/a Z32 clutch setup because Exedy, Spec and T.C.S clutches weren't holding up. Most people that I know and research that I've done, boosting a stock block doesn't last too long. Yea, some people have had months of success, but they just got the luck of the drawl.