I'm boosting a D16Z6 also. I'm going to rebuild both the top and bottom ends..... Top- New valves, valve springs, retainers, guides, & seals, as well as a port and polish and 3 angle valve job. The bottom end- Crank knife edge and micropolish, +.020 over bore, SRP pistons(9:1 compression), block guard, eagle H-beam rods, as well as new federal mogul rod & main bearings............ I'll be able to run 15-20 psi all day, provided the boring of the stock cylinder walls doesn't weaken them. If it does, I'll just get the Darton sleeves. Its one hell of an investment, but, a turbo kit is also, and if you are going to do it, do it right, naw mean?