re. Curts engines/air cleaners.
With the smooth chrome accessories the oil baths definitely looks real good and correct.
Conversely,
With the aluminum finned Fenton valve cover, your custom made K&N air cleaner setup definitely looks real good and correct.
So, in either case nice setup(s)

re. oil bath AC. Had I got my dual Rochesters to work like I wanted I would have stayed oil bath (as my 49 216 still is), but I went with more modern carbs so I went with a paper element type. I do like the looks of the oil bath setup....
re. OP, nice mod, thanks for sharing.
Dave