273/318 valve cover breathers

Hello, I have a set of Cal Customs to install, do you happen to know of any twist-lock breathers or whatever goes here on the valve covers? Any names or models would be helpful in searching for what to buy

(Sorry if this is a dumb question, it's my first SB Mopar)

Thank you!
Patrick

Looks like any stock twist lock caps from later 318/360 will work. Stant?