I'll make the details short and sweat.  1999 Sunfire Gt 2.4 Manual.  I recently installed RapidFire #5 Plugs, Bosch Plug Wires (boots), new Ignition Coils, new High Flow Cat.  I am getting a cylinder #2 misfire still.  It only does it when the car is warmed up an I try to accelerate hard.  No misfires are present at idle.  It feels like the car is bogging and I have terrible MPG's.  Any ideas/suggestions?  Thanks.