Here’s one I have with the same 2 bbl baseplate, but no extra bung for the hose, which may be some kind of California emission thing. I’m using mine with the K&N filter for the commando assembly, and one of moparmat2000’s 4 bbl baseplates for 5” carb throats, to get a 2 bbl look out of my secret stroker project!
These air cleaner covers were used on both /6 and 4bbl starting in the early 60's. The black covers with and without the nipple are readily available and has never been a question. I have never seen another 2bbl one on any year.
The nipple is part of the Cleaner Air Package for 67
