just got me a '67 Barracuda

65 Dartman said

I noticed in your 2nd picture your air cleaner has a nipple on the side. There should be a rubber hose going from that nipple to a nipple on your oil filler cap if it was a factory cap. Won't make a difference with your problem but thought you'd like to know.

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Yeah, I wondered about that. There's no nipple on my oil cap. But the filter material in it is oil-soaked. Does that mean either the air cleaner housing or the oil cap have been replaced from another model /6? Should I be concerned enough about that to restore it, if so?