One port on the PCV valve is connection for an evap system / charcoal canister (if applicable--which I doubt anyone here would have). Please leave it plugged. In my case I cut off my road draft tube about 2 inches from the junction, inserted a very common grommet there, inserted a piece of 1/2 inch copper tubing soldered to an L fitting, ran that up to the level of the valve cover, soldered a 1/2 to 3/4 inch copper tubing adapter and my PCV gets two o-rings and fits nicely into that. You probably can see the black 0-ring in the image below. I used some common metal I had to make a piece connecting the tube back to a valve cover screw for stability. The tube from the PCV valve goes to the intake manifold and then I used a non-vented filler cap with a grommet for the other tube and ran it to the clean side of the air filter (underneath...I put a nipple under there for it). Please see images below and let me know if you need more. The PCV valve I use will pull between 1 and 2 in of vacuum and that's about perfect for evacuating the crankcase and keeping a bit of negative vacuum in there. More than that won't be all that good.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
