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This is a first for me, but here it goes... I have a xj 1179 now! Had her implants increaced to 1179cc wisk piston kit, valves re -done, k&n indvidual filters, but stock 4 into 2 exhaust, my question is stock jetting is 112.5 mains just wondering where is a good number to jump to for a starting point 120's main jets ?? I figured I would raise the needles 2 washers (.050 each) Had it running with carbs stock and it was fast! no popping ,even power band. but pulled plugs and they were looking a little lean. what do you folks think ?