I have a carb/gear/tire question. Running a 1600 single port. Any opinions on size of carb out there? I am currently running a 30 pict 1. It runs great in the realitively flat stretchs but really doesn't power much up a hill. I live in W Austin and there are hills between me and any where I go. I have the stock 14s, would smaller tires help? Maybe the answer if alpine gears? If so how much would performance suffer on flat ground. Jeff