my buddy just did a top end build (and crank) on his shee. his bike always ran strong but after his rebuild it wont pull 2nd and he says it feels like it doesnt have any top end. he has--50 over bore-k&n pods-stock carbs "370 jets" -timing plate "+4"-lightened fly wheel-shaved head "30 thous"-F.A.S.T. clutch. when we first took it out it felt like the clutch was going south,he ordered 1 from jeff and he said his old one didnt look bad, put new one in and it ran alittle better but still weak. his compression is 165... ive been trying to brain storm but cant really come up with anything. he just rebuilt it !! any thought would be great !!