my car will miss on full throttle sometimes its weird though it might not be a miss the rpms just drop for about 2-3 seconds as if i pushed the clutch in but i dont so jw what this would be

 

Maybe your clutch is slipping....but that wouldnt be called missing. Anyways maybe its somthing to do with your engine if its missing then it could be ignition related plugs,wires,cap,rotor or maybe its just the plug gap and its blowing out the spark...