1 x Auxiliary Venturi to suit 38, 40 & 42 DCOE Weber Carburettors Genuine Weber calibrated part Also available in 3.5 ** Please note, these are to suit the early DCOE carburettors where the aux venturi is retained by a spring clip ** The ram tube slides in between the carburettor body and aux venturi. They parts differ to the factory items found fitted to Alfa Romeo carburettors where no ram tubes are used (the Alfa parts are no longer available) The 70003.450 auxiliary venturi can be used as a replacement however should be used with ram tubes to secure properly.
