He told me that the exhaust was too restrictive, and that fixing that along with a set of cam gears on there it will fix my problem, so i will be replacing the exhaust and fitting the cam gears next week, jim assured me if this does not fix my problem he will give me my money back
As to why he never told me that it was too laggy when they had it, i couldnt tell you, all they said to me when i asked this was " you only told us you wanted 300 atw which it made