Edelbrock Crankcase Ventilation Hose Connection to PCV breather

Johnny Dart said

I can't see the passenger side valve cover, but I would do something like this. Breather on one side (not hooked to filter housing), pcv valve on the other side, hooked to pcv port on carb. Your valve covers have a knock out for the pcv grommet.
Switch the breather side vc to the passenger side, and pcv cover to drivers side. Give the Edelbrock 1205 to some Chivy guy.

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Question,

if I got an oil cap for the left side that was sealed and then put the pvc on the left using the knock-out, and then put a breather on the right I’m guessing it might work. The only issue would be the oil cap not sealing and causing a vacuum leak (through the oil cap seal) which would cause leaning at idle. I like the look of your system but would like to avoid getting new valve covers if not necessary. (I wish I’d not tossed the oem but I was 17).