48 IDF carburettor as per part number 19030.030 These are a reproduction of the Weber version. Come with trumpets, throttle lever arms, fuel unions as shown. Will accept all Weber jets and gaskets etc so tuneable for most engines. Comes with 40mm chokes F2 emulsion tubes, 150 main jet, 180 airs, 60 idle, 50 pump jet, 200 N/V