Here is a nice write up on Roe's SC, which is what I have on my truck. Roe is 1st class all the way with GREAT serivce. There are only a handful of Viper shops like this, with Roe being one of the good ones. (Dyno results on page 2)

http://www.sporttruck.com/techarticles/0709st_supercharged_dodge_ram_srt10/index.html