Inlet Manifold

Right lets pick a few brains more gifted than the "blokes down the pub". Have an inlet manifold on my 3.5 that has two valves coming off of it. (#1&2) One goes to servo and would the other be to a diff lock? Can I just block it off as I dont need it?
Also what is the pipe for coming off the back of the plenum (#3) is that attached to the breathers to burn off any fumes. Looked it up with engine number and V8 register says its a pulsair type, so that would figure. Appreciate any advice.
Cheers

you can block off either if not needed ,vac for diff lock is only needed if you have lt95 gear box

Thats some kind of a crazy looking inlet you have there

Yeah mr Noisy cant find any ref to it at all in literature Ive seen, so have been flying by the seat of my pants installing & getting it running. As far as I can tell its an aftermarket fit Janspeed turbo on an 85 RR 3.5 know nothing of the history for it apart from someone had it in their parents garage and they were selling up and wanted rid. Bargain! Partial strip down seemed to back-up the blokes statement that it had had "work" done on it in the past but sadly, no paperwork. Apparently someone had had it in a shortie green laner but took it out for fear of death lol Im not sure if his demise would have been from losing control at speed or from the cost of running the thing!! Ha Ha
Thanks JM will do, can you shed any light on the mystery pipe connection?

Lol, good luck with it anyway