I would like to hear an answer to this also. I have a bog when I open the throttle, and I'm already down to a 155 main, 42 pilot, jet needle in 2nd clip from top, with snorkel removed and AS=2 turns out (32:1 H1R, yes I know Bel-Ray sucks, I've already bought some Maxima K2 for the next tank).
I presumed I'm running too rich, but now you've got me wondering. I don't have any open spaces that would allow me to do a WOT plug chop, so I'm working off of throttle response and level of smoke out of the pipe.