04 stang misses during hard accelaration

I need some help with my o4 mustang gt. I has new stg 2 comp cams and stg 2 livernois heads. runs good when cold and hot. Sometimes it pops when i shift. It also feels like it misses when its wide open. My ignition system is stock and so are my fuel system. Any suggestions will be considered. thanks

A miss under full throttle would be faulty ignition wires or worn spark plugs. It's probably something simple like that. I would replace the wires if they've never been done. You need a lot of voltage to fire those stg 2 heads and cams.