Mine seemed like it might have wanted to turn a few more RPM with the PCII, but that could have been just me or the fact that I removed the airbox lid altogether. It just slips right on the end of the stock pipe. You will want to get a pipe though, it will make a huge difference in the bike's performance. When I say huge, I mean it.
My jetting if I remember corerctly is: 148 main, 45 pilot, stock needle in 2nd clip.
Mods: no airbox lid, FMF Gnarly Desert (~30), and PCII.