Were these purchased new?
The fuel filter would have nothing to do w/ the leaks...
Car been sitting for an extended period of time?
Tank been down for a look?
Perhaps cut the fuel filter open, and see if it's full of rust.
Unless some $hit is caught in the inj body, and holding them open, 150# of Fp would not make them leak.
If you want, take the inj you took out, and take a sheetmetal screw, and carefully screw it into the inlet. [Filter basket]. Work the basket out, and tell us what you see.
If you have a plug inspection light, or some kind of lighted mag glass, look in the baskets, and see if they are full of crap.....
If you want to use them, I can clean and flow test...