I have to disagree with you there Seamus, if they are cleaned out and hooked up right then maybe keep them. I myself have found no issue at all without running one, so I personally don't see the point unless there was power steer and an air con in the mix.

now Maxhag, as Seamus said put one of those small crankcase breathers on it, however check that it's actually connected and used wit your ecu. I guess the easiest way is to run your engine and then unplug to see if theres a change. Otherwise just plug that port in the end of the chamber on top of the intake manifold