GS-R Civic

I was swapping out my stock injectors for my RC 750cc injectors after passing inspection yesterday, gotta love NYS...

Anyway the black piece that slides into the top of the stock injectors is stuck in the fuel rail. Now I have done this a million times and I am pretty sure that they should stay in the injector, and not remain in the rail.

Is this correct or am I losing my mind?

I tried removing them with needle nose pliers and they WON'T come out! I did tighten the rail down a lot when I installed them for the inspection because one was leaking. I didn't go crazy, just one by one I tightened down the nuts on the rail 1/4 to 1/2 a turn then started the car up again to check.

Just wanted to make they are suppose to come out before I destroy them.

Thanks for any help!

GS-R Civic

http://images.am-autoparts.com/item/a3459ac35a.jpg

The black thing on the right is the part thats stuck...

has anyone dealt with this? I'm just going to keep trying to rip them out.