when steeing your jettingyou have to startat the top and work your way down, (mains then needles, then pilots and air screws) as everything above will affect everything below, so get a 300 or 310 in your main and ride it, if its runs great from 3/4 to full then your main is good but do a plugchop to check, then go to your midrange, that is adusted byyour needles, then go adjust your pilots, with your mods i would bet that a 300 main, stock needles with the clip in the center slot, and the stock pilots with the air screws about 2.5 turns out would be damn close if not perfect.