Sn-89's were decent blowers about 10 years ago. I had a 5# Sn-89 and can tell you within a few months you will be kicking yourself for not buying that Vortech. That Sn-89 is good on a bone stock eng. for a little extra steet get up and go. About the only advantage to the Sn-89 is you won't have to upgrade your fuel system. I wouldn't try and pulley a paxton for more boost w/o an oil cooler.
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