You know I am going to have to look these carbs closer as they were realy good carbs, I am thinking if you cut the old tank were the carb bolts on ( fill with water first ) then one could make a different small tank maybe even a brass bowel of some sort. Could even shorten the tubes. But like Cannonball says you have to come up with a needle, seat and float to regulate the flow, from tank above ..............Curt