The real issue is, it's a Harley. They've figured out the most efficient way to turn gasoline into noise, without the side effect of horsepower. My opinion is relative though. I'm all about 2 stroke whips. My NSR and YSR are comically small compared to my 6'2" ogre behind. My FJR and ZX6R do it right though. 150k and counting on the FJR.
Youre going to run lean now. You need yo ho get a fuel pack so you can adjust your fuel air ratio otherwise youll lose top end and your head temps are gunna get higher than they should be.