I am in need of the vaccum diagrams (an dummys guide to) for a 1985 2.8 v6 chey s10 blazer with a carburator and california emissions. I mean its got to be this is a part (eg. egr valve. it has a line connecting into this t connector to this y connector to the manifold vaccum port. PLease help me

You might try the autozone site, if you haven't already. There is link in the upper left corner, that says choose a vehicle, click on that and follow the directions. Then click repair info, then repair guides. Click on emission controls, at the bottom, is link that says vaccum diagrams. You might take a look.