Wondering what is best area to connect boost gauge either the map sensor/manifold line or before the turbo inlet port?
Thanks.

 

Before the inlet port? What do you mean? Most tee into the MAP sensor line or delete the AIH and use a tapped plug for the fitting. Like this:

 

Upper left of this photo, you will see the tee-into-the-MAP line technique.

 

What size T fitting is used?
Thanks.

 

I t-ed off the map sensor too.

 

It's this kit. Not sure of the size.

http://www.dieselmanor.com/dm_produc..._gauge_kit.asp

 

Mine is teed into the MAP line also.

But I added a regulator after it so the MAP only sees 22psi, but the boost gage shows actual...

 

I circled in red the point where I attached my boost gauge. Is this ok or do I need to move?? Any difference where you connect?
Thanks.

 

The area you circled is PRE-IC. You should move it to AIH or MAP sensor line.

Edit: Actually shouldn't make much difference but you could get a leak in one of the four connections before the boost gets back to the cold side of spider and not have an accurate reading, or know you have a boost leak.