for instance, i have a QFT 750PV. it has 5 emulsion bleeds, i understand what they do. i don't understand when...instead of me guessing can someone enlighten me please. i want to know about the fuel level in the bowls during a run. to add- how does a carb-tune, tune the bleeds if not on a dyno. what indicates how he sets up the bleeds from factory specs. Cheers!