5S-FE MK2 Non-Turbo Engine 5sfe throtle body up grade help! [Archive] - Toyota MR2 Message Board

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i would like to make my throtle body bigger on my stock 5sfe to create more power the stock throtle body is realy small. however, it has a bunch of vacume lines that connect to it and im not shure what they do after market throtle bodys dont have these vaccume hose connections so how do i put a bigger throtle body on my engine and still have everything working properly?