l am trying to disassemble the LT1 fuel rail. What I am trying to do is remove the metal tube that comes in from the fuel tank and goes to the back of the fuel rail on the passenger side. I need to replace it as it is cracked where the guage would go. (schrader valve).
It appears that there is a small set screw or possibly like a check ball similar to a ratchet and socket but I don't believe that is really it.
Any help is appreciated.

 

That tube to the passenger side fuel rail does not come out without destroying it. Here's a breakdown diagram of the fuel rails totally disassembled.

 

Thanks. I ended up getting a new fuel rail from a burned up car for 25 bucks. cleaned it up and gonna get new o-rings and it'll be nice.