95 F-150 w/302 stalling

My 95 has a 5 speed. It runs under nromal loads great. But pulling a hill it will give a quick hard miss. And keep getting more frequent as it goes. Now as I pull yo a stop it will start to hesitate and saomtimes die out. Refire beautifully, but when I tap the accel. It's the same problem all over again. I did have a bad O2 sensor and replaced. MAP was sendout too much voltage and it was replaced. SO I went hog wild and replaced the stator, cap and button, Plugs and wires. COntrol module, TPS and IACV. I tried to rule out a stuck open EGR by blocking it off with a piece of hi temp gasket so the computer would still function, but it still runs the same. 2 new fuel filters and just to line it out right, I added a new K&N air filter. I am seriously wondering if the EGR may be bad. How can I check this and what is you opinion overall? Thanks, David.