well i have an 07 wolvy 450 with a HMF pipe, Stage 1 jet kit, and KN Filter with 25in ITP Mudlite XTRs and its reachin its max at like 52. what else can i do to make it go faster? any sugguestions other than a big bore kit? i raced a 700 grizzly that was stock and beat him till bout 25-30 ft out...