alright so last tiem i changed my plugs they were pitch black and white on top. i thought that ment i was running lean but now i think its cuz im running rich because i have also noticed carbon shit pooping out of my exhaust pipe. when i start up the car for the first time a bunch of black carbon spits out of my exhaust. any suggestions. its a totally stock gsx

oh it doenst poop out to the point where you can put your hand behind the pipe and get shit on you but its to the point that where i park my car in my driveway there is a tail of carbon on the concrete

wait did this happen right after you changed your plugs?

Is it a 4G63? You could have somewhat the same problem I do with oil getting through into the intake manifold from the valve cover vent hose.... I had a little carbon problem from that awhile ago....

its its been happening from my old and new plugs. bought the car not too long ago and its been happening since ive owned it.