pcv system setup

i have a 95 vert 5.0 auto and when it idles its spits and sputters the timing is good and it stumbles when i press the gas and it dies if i am not on the gas when i put it in gear also the pcv valve blows out of the intake and it is brand new all of this started to happen just after the head...

I know there is a "superthread" in here somewhere about open breathers on valve covers being a major vacuum leak if the PCV is still hooked to a vacuum source, but I can't find it. I made it abt halfway through that thread & realized it was the usual 3-4 ppl that actually know what they are...