Get a copy of Jim Brierly's book; he has a whole chapter devoted to building a PCV system for an A or B. Any four cylinder enthusiast should own his book as it is both entertaining and full of great tech.
https://www.fordbarn.com/forum/showthread.php?t=27994&showall=1 Sent from my iPhone using The H.A.M.B. mobile app
Interesting, I have two bangers and a PCV would help keep moisture out of the engine and cut down on sludge. I'm not running vacuum wipers and could use the port on the intake as the vacuum source.
have been running a pcv on my A for years. also on 8ba, they both had leaks at front and rear mains. on A ran from tap into side cover then into intake manifold, sealed the vent @ oil filler, no leaks for 15+- yrs. same basic setup on the V-8. 1974 a man who drove a mdl A back and forth from ca. to fl. told me that this is how he stopped leaks, works for me.