Well it's kinda late for all that, I am an impatient idiot and just dive into things head first and see what I come up with, some how every once in a while I make it happen...basically alls I did wast remove the rusty built up carbon,gasket matched it, along with the intake, using calipers to keep them the same. Then tapered from gasket match opening back towards the valves...I have a 72mm turbo on it, it should force the air in there regardless I'd like to hope..got alot of clean up work yet and smooth it out. Then on to MLS headgasket, ARP studs and torqueing her down, installing the rest and then seeing how she does forcing 14psi down her thought...she doesn't have any gag reflexes and i think she kinda likes it!! After the head gasket blew I started building up a 5.3 lm7 forged pistons, stoker kit, cam, ect..but I just couldn't quite pull the ol 4.0 ho out...so I figured get the parts I need and give her 1 more chance and hope she lasts...I don't need that kind of power in a jeep il save it for a lil hot rod...twin turbo lm7 can put out some power more than I can keep together in my swerving all over jeep