Thanks. I did. The part was not available from anyone in the U.S. or the U.K. CB sent the wrong one and did not have the one I needed and did not know where to get one. I ended up finding it from a shop in Italy, after searching around for a couple of months. I needed one auxiliary venturi -- it was so hard to find the right kind, I ended up buying several just in case. His email is:
AlfaRomeo1750@libero.it