Can I modify the A/F mixture from 2 3/4 out from sitting after changing carb?It seems to be not right operating excellent. Symptoms are taking in fatigue while downshifting. Sputtering going up through equipment,and a common deficiency of energy in 5th equipment. It seems i just can,t get the right A/F mixture right. Plugs we are wealthy at first,then ran some sea foam through reservoir,while creating little modification to A/F mixture,then examined connects again and they are fresh looking not smoke or oil. But it still sputters under full. I changed the airplanes from damaged carbs to new carbs after washing alternative carbs very excellent. Any help is greatly appreciated. It is an 03 BTW,with on the right part.