I know the jetting and accel pump were completely wrong , on my 07 . my accel pump did nothing . I think it's kind of wierd if you read the forums , everybody put in fatter jets , but mine I tested on a dyno and it was way fat , and then lean when I cracked on it . I rejetted mine and put on a rdpower bowl . I think the dyno run was money very well spent.
so get a jet kit plus an adjustable leak jet and take it to a dyno