There probably isn't much difference between them. Someone here might know for sure. I'd say that as long as you know which one is on your car, then you know which one to buy parts for. That is what really matters. Paul W. In an email dated 25/6/2005 3:27:36 am GMT Daylight time, "Tony Bevacqua" <tonysru2@xxxxxxxxxxx> writes: >I just found out that there were two carburetors for the 392 in 1957. ?WCFB >2490S for the EARLY model, AFB 2448S for the late models. ?How do you know >which is the correct one? ?My car build date is 5/18/57. ?Seems late to me, >but the one in it is the WCFB 2490S!! ?Thanks for your input. > >Tony > > ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm