This writeup will show you how to install an Autometer 2 1/16" fuel pressure gauge in your engine bay.
Materials Used:
Autometer Fuel Pressure gauge
Part # 3312
Autometer Gauge Mount bracket
Part # 2236
XRP 1' braided hose with 90° end
Part # 649012
2 XRP Hose Ends
Part # 230004
XRP Threaded 'T' Fitting
Part # 982404
2 hose clamps
(can be bought at any parts store)
Below are some pictures of the parts, and installation instructions: 
These are all the parts needed.
Step 1:
Find a place to mount the bracket where you will have enough for the braided line to reach. For this, I used the driver side strut tower, and used one of the existing holes to screw down the bracket. 
Step 2:
Put all the fittings together. The 2 hose ends go on the ends of the 'T' fitting, and the line will go on the bottom. 
Step 3:
Find the proper fuel line to splice into. This will be the line coming off the fuel filter, going to the feed on the rail (also seen in the picture above). Once you find this line, cut it in a spot where you can put each piece of hose on the XRP fittings. 
Step 4:
Connect the 90° end of the line to the gauge and mount the gauge in the bracket (make sure you run the line through the bottom of the bracket, so the gauge can drop right in after the line is tightened). 
Step 5:
Turn the ignition on, and check for leaks, if you see a leak, tighten the fittings better.
Step 6: Optional
If you want to go that extra mile, and have a lighted gauge, connect the light bulb. Just ground (black wire) it somewhere near where its mounted, you should have other bolt holes, or grounds in that area. For power (white wire), you will need to extend the wire to reach the driver side sidemarker. This will make the gauge come on when you turn your parking lights on. Splice the white wire into the positive sidemarker wire, and you're done.
There are other alternatives to this, but this is just one that I have done.
