Something missing on 383 in a Fury III?

Hi, looking to perhaps buy a Fury III and the car has a (so the advert says) rebuilt 383 engine - but I noticed in the photos something seems to be missing (attached photos, left side rocker cover). Is the exposed tube supposed to have a breather cap? Should I be worried / what should I check for? I'm going to see it in person tomorrow, the video I've seen so far showed it had a smooth idle and revved freely.

My only experience with old engines was a 455 in my 71 Trans Am years ago, and loads of 4 cylinder Fords.


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Author: system11