The extra torque on the top bolts is a must. With good results I have started to torque the heads down then letting them sit overnight then re-torque them the next day. This gives the head gasket time to compress and will slightly lower your torque on the bolts/studs. Reason for the need of the re-torque.
Do not copper spray the 9333's
88lx Conv. 200K mile stock longblock. Trickflow intake, 42lb inj, Pmas protube,TKO500, 3:27, pypes muffs, Pa Racing tubluar K-member, DIY single turbo setup. Summit aluminum rad, Crane Hi-fire ign, subfames, 17" sc saleen's, Saleen ground effects, SCT tune by Dynosport. 380HP 435ftbs.