I have a pair of Weber carbs set up for a 240Z.  These came with a parts car I bought several years ago.  I have never run them, but they look to be complete and operable.  Individual chrome air cleaner housings, together with what appear to be K&N cartridges are included.  The number 2830 is stamped on one side, and the word "cannon' on the other.

Anyone have any idea of their value?

Thanks

Looks like they are around $300 used and up to $800 new after a google search.  Good luck with your sale. 

Moved this to the classifieds forum.