IM new here guys so if im posting this wrong or in the wrong place go easy on me,any how on to the bike . Iv pulled all the restrictors i can find ( front of pipe, "intake" in middle of carb and jug, piggy back jet, and cut off about three and a half inchs on the spark aresster insert) i did see gains but now i have a bog just off idle and it dosent want to stay running at idle ,plus i would like to see more bottom end. i thought about port and polish but thats all mid and top end gain so please sombody has to have a trick or two left up there sleave other than an over priced pipe witch is once again mostly mid and top end gain