CLICK PHOTO TO ENLARGE. Dellorto VHB "A" Diagram 27-30mm Dellorto VHB "C" Diagram 27-30mm Dellorto SS1 Diagram 27-29mm Dellorto PHF, PHM 30-40mm Dellorto UB 20/22/24mm Dellorto SSI DS Pumper Carb, 25-30mm Dellorto PHBH 26-30mm