Hello Jeeper's...I'm still new here, and I am wanting to install a mechanical type vacuum pressure gauge in my XJ cab. My 91 Lerado is at least 95% factory and I am wondering about where to install the hose for the reading's. I do know my throttle body has a small port on the bottom driver's side that is capped off, factory I think.. Will it be O.K. to make the connection there? I do know when I remove the cap from this port it runs poorly.

 

Intake manifold just rearward from the throttle body. Just T into the line.

 

As for mounting have you seen these...http://www.summitracing.com/parts/at...model/cherokee

 

Thank's a lot you two....I have ordered a pretty good unit from Orielly's here in my area, and am going to install ASAP!..I'll get back and let you know how it's helping me out....Have A Great Day!!!!