3500 fuel rail issue

[GT2 Gordon]

I purchased a 3500 from a 2005 G6 for my RWD project. I've taken the top end apart to rotate the plenums. However when I cleaned the fuel rail I noticed an issue. When I blow air through the fuel line entrance, air only comes out of the injector bosses on one side of the rail? The small can as I understand it is just a splitter but apears to have a restriction that doesn't allow very much air to go to the rail that it's attached to. The rail looks brand new. No rust or anything.
Any thoughts?
thanks

[ForcedFirebird]

The 3500 fuel rail is return-less. If you are using a conventional fuel rail, you need to source one from a 3400/3100.

[Fastmax32168]

Gordon, Mine did the exact same thing, so I assume it is normal.
Roy

[carbon]

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