I've cleaned the carb on my barn find PA50 2 (caked in old gas...licensed last in 1982), with help from your cab cleaning tutorial. On the subject of what direction the bowl drain tube points, it says "to the right when bowl assembled" (source: Frankman). Ok....which "right"? Based on direction of airflow thru carb, with carb in it's normal upright position? Or...? The service manual shows it to left, with carb in its normal position. ??? The tutorial say the bowl will go in either position but installed wrong there will be "problems". ???