Differences between 273 Commando Silenced Air Cleaners?

Mopar Tim said

according to Alpar all 273 4bbl came with chrome parts. air cleaner, pcv valve holder and Chrome breather cap. Find me a parts number for a original Chrome breather cap with a tube. And of course the special valve covers came on it as well. And the duel point Cast Dist.

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I would not believe all you read on Alpar. I've seen some mistakes there. 273 4bbl did come with chrome parts. The air cleaner, pcv valve holder and Chrome breather cap to go with the special valve covers. The dual point cast iron Prestolite distributor, carb, intake, pistons, valve springs, and cam were the differences in the engine.