Just to update this tread the banshee also has no lid and a k&n with the pro design adaptor and the carbs had 290 mains in it and I put 280s to compensate for the elevation change. So it has that, fmf fatties, boyesen reeds and spacers. I am at about 3900 elev. So does the 280 sound right I think Im still running a bit rich at wot, should I go down to 270?