Ive got an 04 that I am running near sea level. It has dmc 916s, stock head milled .030, vf3 reeds, +4 timing, open airbox/k&n, stock porting. Its 15-30 degrees here right now and I am running 30 pilots, dynojet 6 position needle onn the 3rd clip, 330 mains. So 380 mains with your porting doesnt seem all that unreasonable. What is your elevation?