hooking up my boost gauge

[G-bodyguy]

I am hooking up a boost gauge and I was wondering how do I hook it up. I bought the gauge used so I don't have any instructions to help me out.

 

[b4black]

Poke a hole in the grommet around the speedometer cable, feed the tubing though and then tee into the vacuum line going to the boost switch near the cruise unit.