"Is there a manual that shows what type goes on what year? All these years I have just been winging it. Ed"

This is a huge file so be patient. https://www.carburetor-parts.com/assets/manuals/Rochester%20Service%20Manual.pdf

...and one from drdoug and another that I stumbled on a while back.

Of course there is always the The Old Car Manual Project.

Phillip
Attachments
Rochester-5921-5922-specs.jpg (106.22 KB, 28 downloads)
Rochester B & BC Carburetors.pdf (155.34 KB, 5 downloads)

Cruisin' in the Passing Lane
Former owner of a 1954 3100 w/Hydra-Matic
"To know what you know and what you do not know, that is true knowledge." - Confucius