highway21

well thats the only thing i can think of. try retarding the timing 2 degrees from stock. because you said you are failing by a little. so new cats and retarded timing will drop that. try a junk yard for some cats.

dimebag

like my **** failed by .1 something, its rly close.. ill try the timing thing i guess. ive already been 4 times and failed each. this time it was the unburnt(forget the name), limit is 2.5 something and i had 2.6... shyts close.

highway21

tell me if it works. just remeber retard the timing dont advance it. you advance it hc, co, and nox will all go up.

dimebag

ill let ya no. n is that ur car in ur avatar?

highway21

i have an ex highway patrol notch mustang but not that one. i wish mine looked like that.

dimebag

i was gonna say, shyt looks sick... sounds like u need to get pics of yours up on here then man, lol dont feel bad, it took me forever to get around to posting pics.