PCV Valve & Integrated non-integrated 250 head question

[RichardJ]

My confusion was also because at what is normally a rubber (I think) pcv valve line, I have a steel one with a "t" as part of the steel at the end. So there's were two "outlets" to wonder about.

And the space where I thought the pcv valve is supposed to go according to the autozone diagram is blocked (rubber hose with bolt in it) and looks like this was done a while ago, not recently with change in integrated/non int. head.

Thought I found two hoses that matched the steel line (originally only saw one) but have since learned that it didn't make sense.

So now learning about EGV, but just wanted to post and say thank you for answering and you definitely helped!!

All the above leaves me with guestions about what you are try ing to do. Is the truck supposed to be smog legal when you are finished?
EGV??? Do you mean EGR? Are you using the intake and exhaust manifolds from the '70 Jimmy and do they have the EGR setup?

What I was talking about and what Autozone is showing you has a grommet in the valve cover. The PCV valve is pushed down into the grommet. The PCV valve then needs a Vacuum Source. It doesn't matter specifically where it comes from or if a rubber hose or steel line is used.

You need to post some pictures of what you have.

This is the vacuum port on my old manifold that I mentioned. It has the port shown in the autozone diagram and it is plugged. Is there a chance that is what you were talking about?