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Hey Norris.....
"Heard" and I just finished doing a PCV valve on his new 8BA with an 'early' intake manifold. You're correct.....there is an internal tube that originally goes from bottom to top. One twist that we decided to overcome was to devise a way to hide the PCV valve, yet have the ability to service or replace the valve WITHOUT the need to remove the manifold.
We cut that vertical tube roughly in half. There is a DORMAN freezeplug that fits tightly into the top of that tube, into which we drilled an appropriate hole to accept a bulkhead fitting with a compression nut and ferrule for the copper tubing. Click the link below for our entire thread with a parts list, including that DORMAN freeze plug number........plus a lengthy description of our process....plus lots of pictures. You'll find a tube shortly....I can't believe
"tubman" doesn't have half a dozen of those laying around on the floor!! Good luck!! DD
https://www.fordbarn.com/forum/showthread.php?t=284487
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