There should be a threaded hole in the intake that goes into one of the runners and this will work fine for the PVC system. You can use a spacer which will also help the power of the engine a little more than likely. There are several different typs of spacers out there for different intakes and applications. We have one that is special made for dual plane intakes. You can drill a hole into the back of the spacer and get the vacuum there for the PVC as well. Make sure that your valve cover has baffling in it so you do not suck
oil into the intake manifold and make the engine smoke and use
oil. Good luck, Keith