There are a couple other areas, which need to be addressed to extract the maximum acceleration from your engine. One is oil. A simple solution is to add 3 ½ quarts of Mobil One 5w-30 fully synthetic CAR oil. We have used this oil for years, it does not cause clutch slippage. It does allow the rider to slip the clutch at the track without damaging the fiber plates as much. The low oil level is at your discretion; if you like to wheelie DO NOT RUN LOW OIL LEVELS!! An even larger improvement in acceleration can be noticed by using Alisyn <<0W or Motorex Top Speed oils. Another area is the drive chain. O-ring chains have considerably more rolling friction than high quality non o-ring chains. We usually switch to the EK530DR chain available through Schnitz Racing. It is very strong and we have seen A-B improvements at the track over the stock Busa chain.