Rebuilding my 3.8 and was wonder what kind of headgaskets and flat tapped cam to go with.List of mods 52 turbo,3200 precision ind. stall,thdp,4inch single exhaust,ported head with big valves,trw 30 pistons,translator,50lbs inj.precision plenm,atr front mount intercooler anybody had any luck with thr rjc head gaskets.