[Slick75]

So I bought this water temp gauge for my new motor, Do I put the sending unit in the intake manifold, or the side of the head in the water jacket?

 

[69Proof]

Check out the search function type in temp gauge and you will be directed to threads covering your question.
:yes:

 

[Lugnut79]

This link should help you. It's actually a very recent thread:

http://www.stevesnovasite.com/forums/showthread.php?t=116464

 

[NovaResource]

Personally, I like the gauge sensor in the intake by the T-stat and the idiot light sensor in the head.