I am just about ready to go the supercharger route. My delema is which one to get. I have narrowed it down to two. I want to go either with the Vortech S-Trim w/ aftercooler (GT impeller), or the SC-Trim w/ aftercooler (Cobra Impeller). Keep in mind I still have a stock block. I really want to go with the S-trim because I heard it is an awesome street blower and makes good power down low. How much boost would I see with the 3.6 pully with the S-Trim and how much can I detune it to be on the safe side? As for the SC-Trim I haven't heard much about it but for those of you who have it please chime in with your opinions on it. This is definatley one of the hardest decisions I have had to make. Thanks.