idk, im in the same boat. for some reason i was always in love with a KB, but i keep reading nothing but great things about Whipple and seems the majority likes them better :shrug:
If you want A LOT of power get the hellion hellraiser kit.
Twin turbos + eaton!!!
[ame="http://www.youtube.com/watch?v=WERkzAE36G4"]YouTube - Twin Turbo Cobra[/ame]
[ame="http://www.youtube.com/watch?v=trpSMlo7pN8"]YouTube - Hellion Power Systems' Cobra Dyno[/ame]
I would go with either twin screw... as stated before, Whipple looks better, is cheaper, and has good customer service. Kenne bell sounds awesome. I would not do Procharger. If you don't do a twin screw then go turbo.