Wow! What type of driving do you do to get that high of mileage? I do about 85% freeway @ 105+k/h(65mph+) and the rest in town. I got about 70-75mpg with the stock air filter and stock 120 jet. I take back my earlier statement. I think I'm running rich because my mileage has dropped to ~55mpg after doing the needle shim, 130 jet and K&N filter. Other than being much noisier I do have a little more pep at the high end, but still about the same top speed. I did manage to hit 84mph briefly before the proximity of the bumper in front of me convinced me to slow down
I think I'm going to try the 122.5 jet that I have with the K&N and see how that works.