Slant 6 intake and carburetors for sale

So I just recently bought a Plymouth duster and this intake system came with it I have no plans of using it because I have a 340 on an engine stand which I plan on putting in . I believe that there are Weber carburetors they do state that they're made in Spain I'm not an expert on slant 6 intakes so I'm not even sure what I have here. Location San Diego California I would really prefer local pickup. Possible trades for small block parts and 8 and 3/4 parts $500 or best offer