If you want an electric "supercharger" that actually worked for me, go to
http://www.electricsupercharger.com and talk with Mark Kibbort (SP?). He's been selling these things for several years in basically the same confirguration as when he started. The 50 amp motor doesn't quite make 1 psi, but did make a nice 9 HP improvement on my basically stock SE back in '99 at the CEG K.C. National meet. It also helped me take home the quickest SE award from KKM that night with a $50 gift certificate attached. Beat several modded SVT's down the quarter with the E-ram, a CAI, SVT TB, and a S&B cone filter.