Post your tailpipe numbers and the maximum limits allowed. Without that information, were only guessing.
Originally Posted by kik
You also might need a carb adjustment. You might be running too rich. There is an additive called guaranteed to pass. I was skeptical but I used it on my 89 4.2 and, I passed.
Yes, try snake oil, go ahead....
Every car I see with that stuff in it always fails.