Where is the eaisest place to put a fuel pressure gauge? I have never added one to a 12v. Any help would be appriciated.

 

I assume you are asking where the best place to tap into the fuel system is? I took the banjo bolt at the inlet of the IP out and drilled and tapped it. With a 12V, you need some form of a snubber or needle valve or the gauge will go crazy on you.

 

Make sure to use a quality needle valve if you go that route as mine is so touchy that it is hard to adjust properly. I have mine shut off at this point because of its irregularity. Sometimes it takes a long time to come up to pressure if at all and sometimes even tightened that much it will still bounce. Could be $8 gauge I am using. But at that price if it goes bad it is not a big deal to replace it. Where is everyone getting their needle valve?

 

Instructions here https://www.dieseltruckresource.com/...41&postcount=9

 

Isspro sells a snubber that works reasonably well if you don't want to go with the needle valve. It causes your gauge to be quite slow to react but if you are using a fuel pressure gauge just to make sure that your LP is fine, it will do the trick.