I dont have an answer to any of your questions, but i was thinkin about getting a supercharger and had some questions. I was wondering how much boost are your running/what pulley? Also are you running 87 octane or do you have to run 91 with it. I want to get one, but was wondering what i all really have to change, i have done my research on turbos and wanted to see what the superchargers are like, and see what else i would need to get.