71 C10 4.1L L6 air cleaner vacuum pot replacement?

[trevarthan]

Hello,

I've got a 71 C10 4.1L (250) L6 with a bad vacuum pot on the air cleaner snoot:



I can manually actuate the flapper with the air cleaner removed by pushing fairly hard from the bottom where the exhaust gas would normally come in. However, the pot itself won't hold vacuum and doesn't actuate the flapper inside the snoot.

Where might I buy a replacement for this item or a replacement air cleaner assembly with an included pot? I'm having trouble with my search fu.

Thanks!