I currently have 15 sets of used daul Kadron kits to suit both single and dual port engines priced from $ 350 a set . I also have new intake manifold kits , new air cleaner kits , new linkages , larger venturies and a 300 jet assortment . I also have in stock kadron carbs in 44mm , 46mm and 48mm for racing purposes , ROD , 02-42729920 .