Rep Power: 300

recently my car missfires and sputters like crazy once it goes over 4K RPM about the time the boost really comes on. it acts like it wants to go but jumps and makes a lot of noise and missfires. what could be causeing this? i checked the pluggs and they seemed fine. i cleaned them anyway but that didnt help. i am running emanage ultimate and have the comp stage cam.

any help would be GREAT.

MODS- move this to the help section if needed.

 
Rep Power: 350

Isn't your headgasket blown? Are you running a wideband? Without a wideband, there is no possible way to know if your a/f's are good.

 
Rep Power: 0

What gap on the plugs? Octane? What brand gas?