the Speedway Motors Museum Of American Speed has an intake manifold wall of 300 unique and rare pieces, and another wall of them will be made of the ones recently donated by Ken Gross

https://bangshift.com/bangshift-galleries/gallery/speedway-motors-museum-of-american-speed-more-photos-from-the-amazing-collection/
http://www.hotrod.com/articles/1048sr-museum-of-american-speed/#1048srp-37-o-museum-of-american-speed-flathead-intake-manifolds