im building an lq4 for a rcsb currently. Went with the comp cams 224/224 14lsa with tps pushrods, milling 706 heads .030, true union kit on stock rockers, comp cams beehive springs, ls2 timing set, melling hv oil pump (not necessarily needed), ls6 intake and injectors (more for looks, but will help over 6k rpm) and stock lifters. Texas speed tells me good for at least 50rwhp over stock. I will be running around a 3500 stall speed converter as well. I'll let you know the results. Hoping to run high 12's before the giggle juice. ...Oh yeah stock bottom end btw.