For me this whole issue has become academic. My 107 has a year and 14,000 mi. now with zero problems. I'm staying with stock displacement in future, because first of all it's a Road King, secondly I ride solo, and most importantly, it makes plenty enough juice for me. I'm buying the PV from Fuelmoto only because I'm running a decatted header, and will probably swap out the torque cam for a CR460 at some point. Should mention I'm also using the Heavy Breather and Street Cannons. Which, BTW, sound great now that there's some miles on them.

Wish me luck.