1965 fastback 347 hci v3-si Pro M efi. Tko600 3:55
Something I’ve noticed with every breather that uses a pleated/cloth filter element is it eventually gets coated with oil and becomes somewhat hard to flow air in and out. Also usually starts to drip oil after a while. Another thing is they are usually best mounted as high as possible so that condensation and fuel vapors can escape upwards and what doesn’t make it out through the can has a path back down where it came from.Moroso makes the small version like that. I have it. I'll take a picture of it tonight.
I really like this one
Vibrant Performanc 12695 Fuel Air Separator https://www.amazon.com/dp/B01BZN6STC/ref=cm_sw_r_cp_api_i_1JWG7AGSJB24B8WEBDXY?_encoding=UTF8&psc=1
It uses a recessed wire mesh screen with internal baffle plate.
You can mount it a few inches higher and no pleated filter to dirty up.
-But to recap, I don’t see how you can run a open breather like this using a PCV and not create a vacuum leak.
You would have to use a closed catch can / no open breather.
I use an open breather but no PCV.