carbon build up

on my newly purchased gsx i noticed a lot of carbon shooting out of the exhaust. i changed my plugs and thney have lots of carbon build up on them. plus my car is running very poorly. i think a civic could take me thats how bad. i read a vfaq (http://www.outreach.psu.edu/users/res122/DSM/)
and it recommends these steps to clean out the carbon build up. has anyboyd messed with this before. i think the carbon build up is from the stupid valve cover breather so i installed a RRE catch can.

http://www.dsmtuners.com/forums/showthread.php?t=123649 Seafoam.

What do you guys think about that stuff?

if it works id think its great but im too afraid to try it on my must have daily driver.. so someone else do it first... lol

The black stuff coming out your exhaust and getting on your plugs is normal for a car that runs rich. An O2 sensor thats on its way will do this... So will boost leaks, even more so. Check those things first.

Seafoam is awesome.. I use it in my car every oil change (3k miles)

yea ill check for leaks and my o2 sesor will be replaced when i drop in my evo mani. i just thought that maby i was buring oil and that was a reason for my poor performance and carbon

thanks for hte hlep too guys