Ive been pricing em lately, and found that powerdyne is a lot cheaper than the other super chargers, for the same 9 psi setup...are they a good brand, also, does anyone reccomend a brand/model that would be good for my stock engine? basically im deciding to go with eaitehr heads/intake, etc setup or a supercharger on a stock motor. I gotta be able to beat my friends DAMN 99' z28 Crapmaro...im so mad, anyway, any ideas?