Have you let the car sit for a while? A couple years back I crashed my 97 Talon and let it sit for the winter without doing any sort of winterizing (I know dumb me). When I finally fixed the motor issues with it I drove it and it did the same thing as your car. Everything seemed good until 4500RPM then it would cut out. So what I did to fix it was to drive it until the gas level went down low enough then filled it all the way with 92 octane and put some Lucas fuel injector cleaner in it. And magically the problem is gone. Also I never changed the fuel filter or injectors. Still drives good today and I drive it hard.