stuck fuel rail on 1994 Chevrolet Camaro

I have a lifter knocking. After removing the fasteners from the fuel rail, it seems that the injectors are the only thing holding it to the engine. I don't want to damage anything. Do the injectors pop loose from the engine and stay attached to the fuel rail or are there clips that I have to release?

Asked by for the 1994 Chevrolet Camaro
They should just pop loose...dont be afraid to give alittle pressure to them
Thanks for the help. Do they Pop loose from the engine, or the fuel rail, or both? I also found information that said sillicone spray is good to use.