Boost Gauge Install

I have a new boost gauge for my 95 VR4, and it doesnt have a barbed Vacuum fitting type hook up, it uses 1/8th" threaded fittings to go directly into the Intake Manifold. I have done gauges like this on my friends mustang, it had a simple location with a removable plug, most manifolds do, where is ours located at? Can anyone help me with this type of install?

Thanks,
Matt

lil help please.....or should I return it and see if autozone has a barred "T" vacuum hook up one, the brand I got was FAZE "Street Fuzion"

Wow....I think this is the longest Ive ever seen a post go without even an opinion on the matter....today is weird, lol!