Thanks, guess I am just gonna call one of the techs before I buy a chip

What's the timing at? Have you backed off the fuel pressure? You need to fine tune the timing (spark), and fuel.
B cam is an enemy to the etest .

how old are your O2 sensors? If you are rich it may be because your o2 sensors are telling the computer you need more fuel when you really don't.

I don't know what a B cam is but I wouldn't think it would cause a rich situation. Your timing would be a good thing to know as well.


Are they stock cats or MAC aftermarket?

O2 sensors are new, timing is stock, fuel pressure is at 38lbs.tried once before retarding timimg and turning down thefuel pressure even put in the 19lb injectors with stock maf.still way over