Hello all, I have a conversion that I just finished. After I finished the car I have two problems, one is a bum transmission

The other is one bad injector. I tested all 8 with a borrowed injector pulser and one will not pulse at all. I soaked the injector overnight still no dice. So here is my issue, I have almost no money left after the transmission deal and need one injector. I found someone in the classified section to offer me a set for a decent price but they are from a 2001 mine is a 2000. I read the injector chart and I would be going from a 26lb to a 28lb. Would this be a problem? I don't want to pay for another tune. Also, if any of you have one injector laying around help a brother out