BLWN89GT

ok everyone my car under a load ( when i hit boost) seems to have some ignition break up..i recently replaced my wires ( ford racing 9mm wires) plugs are new as of 2 months ago ( autolite 3922's) msd cap and rotor still good..im leaning towards the coil causing it. what do you guys think? i have a 6al on the car also. and i had to replace 2 coils already last year..1 was crappy out of the box