Hey scdascda (what's that mean, anyway):
I have a Chevy pickup factory assembly manual. If you have this, look at Section 6, Sheet 15.02. These guys back then were doing this before 59 apparently
and - while they didn't use a PCV valve in the loop, what they did do was hook up a hose from the valve cover and ran it to the air intake filter assembly. This is on both in-line sixes and V-8s.
If you want, I can scan the illustrations for you and e-mail 'em (I don't know how to attach them to this Board - seems complicated :p ).
Anyway, the drawings show two metal flanges about 1/2-inch by 2 inches with tube nipples soldered or silver brazed to them. One of these is screwed into the side of the valve cover (port hole and two screw holes, I guess). Same goes on at the top of the valve covers in each illustration.
I got this factory assembly manual kind'a by accident for my GMC. It's a Chevy manual and I almost sent it back, but I'll tell you, it's paid for itself much times.
Cheers!
