Bisi = SOHC GOD! But if you look at his prices, they really aren't that expensive. His custom pistons are under $500 bux, and his Stage 1.2 Turbo cam is $229. For the best, that's not bad at all. Sh*t, you can get the valves and springs with a turbo regrind for around $600. That's less than Skunk2's B-series package, last time I checked.