Originally Posted by TheMTazzi

BlindSpot , that was the answer i was looking for. so what your saying is that i'm going to lose some performance and idle with running a colder plug? I figured this was the case but i just wanted to be assured. also the ngks where 80 bucks, so i think im going back to the ac delcos. u think an ls7 plug would be a better match? or get with the 110s? IDk but there has to be a performance plug,MSD? i remember when i switched out my mustangs plugs and there was a night and day difference, in all ranges, throttle response, smooth idle, acceleration.