You can enrichen the fuel mix by going up a bump with your pilot and main jets, for mid throttle, you add a shim washer to your carb needle. Our carbs are tuned by throttle position,. not RPM and the start of the process is installing the correct main jet for your intake and exhaust at wide open throttle. The more air in and exhaust out, the bigger the main jet. Google and BA.Com is your friend, but you have to do some info search for yourself.
jet_calc 
