Can anyone tell me what this is and where these go? *pics included*

Hi guys, can anyone tell me what is this and what is does and also where does the top and bottem pipe lead to?  



 

The top pipe is leading to the rocker cover and the bottom pipe is leading to the underside of the intake pipe. Is this correct? Plus ignore the bodge… it's airtight. 

Idle boost Valve.
if you had a/c then there would be another one that is white, and together they are referred to over here as salt and pepper shakers.


From Cabby-info.com which I referred you to

it feels like the car is sucking in unmetered air from that area i labelled in red, and I've no clue whatsoever about the charcoal canister or where it is located ? I've no vacuum pipes leading to it or anything? 
Yuh couldn't somehow show me where it is voukd you 

The picture is from an american car so slightly different layout to uk cars, I have taken some pictures for you just not had time to upload them yet. I will get around to it soon.

Someone had bodged/made up a hose from the breather out of the rocker cover as the hose may be NLA? (2nd picture)

Some pictures.
I'll try and find a part number of the hose/connector coming out of the rocker cover breather.

Mate that's exactly what I need, that connector… I need to copy yours by the looks of it! Wonder if the part number is wtitten on your t piece And rocker cover t piece too it's this that's different on mine and I've got a rocker cover that has two metal pipe connections leading off it if that makes sense for breathers