OK I just installed a Vortech S/C in my 06, and I wired up my boost gauge.
Everything hooked up fine the gauge has power(defi link master)and now i
need a line to tee off for positive manifold pressure. Where is the best place.
any suggestions?

 

on the back of the plenum by the firewall,tee it on that vac line.

 

there is a small vacuum line on the back of the plenum, that is a good one to TEE into. Also, in the front of the plenum, you'll find when you remove the cover, that there is a nipple on the passenger side, that is capped off. that one is also prime for using, and in that case you do not need to TEE into anything, just plug it onto that nipple and you'll be good to go!