Id go y7block with z6 head /arp studs/ y8 manifold /aftermarket exhaust/ 11lb flywheel/ as much nitrous as you want and a good tune most importantly. should be more than fun to play with on the weekends and a fun D.D. as well. the y7block has additional oil squirters/ orifaces where the bearings sit thus letting more oil flow and not burn them up. The y7 head sucks so dont bother however i ran an 80shot dry on my d16y7 with stock intake manifold which i liked the way it dissipated the nitrous evenly to all 4 cylinders but the ports are tiny. I ran through 2 bottles a week for over a year and a half with 230k miles on it with no problems whatsoever. my compression was great across the board when i sold it to my friend who boosted it and didnt tune it and blew it up 8months later that motor was a beast. g/l with the build there are probably a million combos you would go with but do research.