I think this might help with the question on where you can put a PCV valve on a ford engine. The article is from July 2016, and it is how to make a 302 Roller Cam engine look like a 260/289, to fit in a Tiger.
https://teae.org/s22-replace-260-289-302-roller-cam/ In it, he states, "If necessary, you can move the baffles up closer to the cover surface but don’t run without them. They are there to keep
oil from being sucked up through the PCV." Of course we now have spacers to raise the valve covers, but the baffles are key to keeping
oil where it belongs! Then I notice in his engine photo, the PCV is on the right cover at the rear. I thought that was just personal preference, but every Tiger I could find had it in the same place. So I went looking for original Shelby Los Angeles Tiger, (LAT) valve covers. Sure enough, all of them had the
oil filler tube on the left cover in front, and the PCV on the right cover in back! I am pretty sure that the guys at Shelby knew what they were doing, and most likely Ford had a say in it also.