Thanks for the reply. I have a friend with a gauge in the town I'm working in so I'll check that right out. I have room for the comp fitting, but the 180 degree bend that it would take to re-attach to the other end might be kinda hard to do. I do have an actual pipe bender so I'll give it a try. As far as that O-ring I wondered about that also. There was none in the box and the guy said it didn't have one. I saw what looked like the remains of fabric or cork on the old line when I took it off, which is what prompted me to ask the guy at the parts place about a seal. I'll check again. Thanks for the help and I'll check pressure first. Where is the port located on the rail, if you don't mind me asking? I looked all over and didn't see one. Does the top part of the engine that covers the injector have to be removed to get to it?