gauge hook up help

Just like so...Tap into the FPR line with a Tee.

Edit....I thought you were running a gage feed line.... :bang: I usually just undo the FPR for a moment as use that feed....

kirban_vac_tee.jpg
 
A tee on a vac-port-line off the vac-tree also works.

If using a Mitivac, one can undo both ends of a hose and plug one end and pull vac on the other end and see if it holds pressure.

Good luck.