i got a 70 zip (but want to take of road for more work) hopefully doing bike tests soon but want something to get to collage and around on so need help. i got a sf 100 my mates offered me a 120 kit polini clutch bell boost bottle for it for cheap. would this make a big difference. what exhaust be best to use. also my mates sandard sf he recons his had 70 out it is this true and another with a tuned 100 he got just under 90? but this is probs bull shit. also will it be as liveley as the zip or would i be best just sticking to 100 kit with or with out performance bits also after 120 pistion
