Alright so I was running a #60 jet with my stock cylinder and the same high flow filter and it was running good and the plug was a nice brown color. I don't think I would go down from there after putting a new kit on.
Anyway I am not sure if I have the tools you guys are talking about. I will check, I haven't dipped into that stuff in a while. And yes Polini recommends that with leaving everything stock you only jet up to a 54 jet and the stock is a 52.