What is this pipe?

Hi again guys

Filling up the forum with my questions - just while I get used to this car... honest

Just wondering - what on earth is this tube? And where should be it plugged in to? It is plugged into a small metal pipe almost directly underneath where the distributor is, and the other side of it just dangles around plugged into nothing...

Any ideas? I've pathetically tried to put a red box around the pipe I'm talking about, which hopefully makes it a bit clearer

Images:



Thanks
Jim
 
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