Dan,
No P anywhere that I can see. Im pretty sure based on the pad stamp it’s just from a passenger car. It’s open for sure…not a posi. I was talking to a fellow member who commented on the same thing, but after chatting, realized it might not be the adapters fault but the lack of crankcase ventilation. Older engines had that road draft tube along with the front breather. But this engine, a ZZ1 crate, won’t have the rear tube so I’m almost thinking I will need the PCV and breather ports installed on these covers to equalize pressure. These are just repops, so no biggie to make the mod and the covers are baffled for the modification option.
Thoughts
Cheers
Dave