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		| Originally posted by stevstum I don't know that much about superchargers,  but I would go with the s-trim and put the smallest pully on it.  I think it is 8lbs.   Then when you and your car are ready just change pullies.
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 Superchargers work opposite.  The smaller the pulley, the MORE boost you make because you are spinning the blower faster.  Just an FYI, the A-trim has been discontinued.  The A-trim did not include a t-rex or boost retard which you will need.  The s-trim is the most dependable street/strip blower out there.  Mine has been running for four years...