Help!-CAT or no CAT

Whenever you make a run down the 1/4 mile with a cat in your exhaust, Chuck Norris punches a kitten...

I went to the emissions testing place and only stuck my 2-way cat on without changing the tune or anything else. I did take the slicks off though. They said I must be sending raw fuel out my exhaust (Yeah, that sounds about right ;) ) They also recommended some shops to have my car "tuned up." I was running 11.2's @ 121-124 mph the week before. It must be out of tune...
 
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