So, currently trying to put the final touches to my 8v GTi that I am restoring.
The engine and gearbox are in, the plumbing is getting there but I am stumped by this pipe.
I know the pipe on the right (number 1) go to the vacuum hose coming out of the side of the Inlet Manifold
Pipe number 3 goes into the air intake attaching to the throttle body
However, I don't know where pipes 2 and 4 should go to.
Any help is appreciated
