How did you guys rig up your psi gauge? what did you use? I have an 88 k5 with the 5/8 line fittings that screw into the tbi and a jegs 1/8 NPT fit gauge... can't figure out how to get it hooked up so i can keep it on all the time. I'm not familar with AN fittings either. Anybody running anything like this? What did you do it with?