A great Mopar mystery (at least to me)

Some good suggestions here. Thanks. So the thing with finned covers like my Mopar Performance style (black) is they are too tall to insert past the power brake unit since it sits so close to the valve cover and rockers when exposed. Yes can go back to stock but since I purchased two chrome replacement units (3 1/4") tall, I would like to use both, not one. Drivers side does get past PB unit but PCV issue above. May just need to fit the correct super tight PCV, grommet, into valve cover fit.