1) For hooking up a mechanical boost gauge, run the hose inside the cabin to your boost gauge.
2) Get a T fitting and hook up the hose from the boost gauge to one end. RTV makes a good seal (after it dries)
3) Cut the hose like in the pic below and insert the t-fitting.
That's it. Check to make sure there everything is sealed.
Pictures courtesy of
http://www.plymouthlaser.com/
