Its a schrader valve, just like your car tire has. You can use and core remover tool to unscrew it from the base that holds it, in this case you can unscrew it right out of the fuel rail yes. lefty-loosie.

example:


Why did I decide to mount it where I did...couldn't tell you honestly. The sending unit now sits on the fire wall. I think I did it so I could unscrew the line from the fuel rail and service what I needed to and it wouldn't be in the way. But there is enough line that I can have it attached to the fuel rails, and just move the rails out of the way no problem. It just makes working on it easier.

You can mount it where ever you want, there is nothing to say "this" is the spot it must be in for everyone. Where I mounted mine, works for me and my set up more than fine. Only thing I am going to change is the fuel pressure safety switch for my nitrous, I am going to mount that as a inline installment instead of having it as its own line like it is now.

~F~