Which part is located on the intake 6.5 td? Boost gauge?

[fullsizeBlazer]

Hey folks,

I've got a question about the air intake. I got following one

http://app.infopia.com/img/image/fp/VPID/6720805/img-2/img.jpg

Which parts are screwed into the holes (especially the big one) on the right, lower side (the bow) of the mainfold?

Thanks a lot and greetings

Flo

[fullsizeBlazer]

http://img708.imageshack.us/img708/7157/partsk.jpg

[JohnC]

IIRC, the tapped one is the intake air temp sensor and the other is the manifold pressure sensor.