Alternative way to relieve fuel pressure?

[Tagoo]

I'm starting my heads/cam/intake/header build. After starting my disassembly (battery, air box, spark plug wires, etc.) I realized I hadn't relieved the fuel pressure by running the engine without fuel pump relay. I really don't want to reassemble to do this. Is there another way to relieve the pressure? Is it possible to disconnect a pressurized fuel line or is that too dangerous to consider?

Thanks!

 

[PhoenixGTS]

The Shrader valve on the passenger side bank of the intake manifold toward the inside rear is the fuel system bleeder.

 

[Tagoo]

Thanks PHX! I always wondered what that was. Works just like a valve stem in a tire!