You are bidding on a Carter Model AFB Competition Series four-barrel carburetor, stamped P/N# 9634SA, rated at 625CFM.  This model has an electric choke.  It is used but in good condition; nothing is seized.  This is an original Carter carburetor, not a late model knockoff made in China (beware of those!).  Sold for parts or professional rebuild; this is a great item for your project or for someone who works with this model.  Shipping is FREE for USA only.