Can somebody point me in the right direction of where the T-Piece goes from a PVR. (a picture would be great)

The instructions ive got are

Cheers

Think you must mean PRV - Pressure release valve?

Try here... http://www.fiatcoupeclub.org/forum/ubbthreads.php?ubb=showflat&Number=1129630#Post1129630

Yes he means a PRV. It's what they call the "goal post" on the inlet manifold. Look at the rocker cover, above that is the inlet manifold, and it's finished in a rough finish. On that there is what looks like a mini goal area, black rubber hose. You slice that right in the middle and put the T-Piece in, and then run the vacuum hose whichever way you like into the bulkhead and the cabin.

isn't that instructions for installing a boost gauge?

Yes - you can't install a PRV there

PRV has to be connected to the two small-bore pipes that currently connect to the standard EBV (Electronic bleed valve) which on a 20vt, is sited on a bracket connected to the front edge of the battery tray (not sure where it is on a 16vt)