I just finished installing the HPD airbox mod, full exhaust, and aggressive clutch. I have also installed a K & N air filter. Also, I turned the low RPM fuel mixture screw out 2.5 times. Low-end is great, however, the top-end seems to be a little doggish. I recall reading that some have gone up to a 180 jet. Is there anybody else who has done these mods and what has their experience been with jetting?