Engine sputter when punching throttle
 

I am trying to troubleshoot my 1995 Toyota Camry 2.2, 4 cylinder. The engine idles fine, if you ease on the fuel it is smooth wherever you hold it. If you punch the throttle it sputters. I have installed new fuel pump and strainer, fuel filter, fuel pressure regulator, injectors seals and o-rings, cleaned throttle body, cleaned the IAC, installed new air intake sensor. If someone could give a good direction to head so I can eliminate this throttle punching sputter issue, it would be greatly appreciated.

Check ignition system.