musclemustang94

87 burns easier. 89 is harder to burn, which is why its more resistant to detonation. If its easier to burn your HC's will go down. HC's are unburnt fuel, CO is partially burnt fuel, and NOX is overly burnt fuel from high combustion temps (2500 degrees). You might wanna try driving your car REALLY easy when you drive to the station.

Purple87gt

do it and tell us so everyone know

musclemustang94

I bet that those and an oil change are really all you need. Are those numbers in PPM or GPM?

94gtcoupe

try making the car run a little lean. i don't have emmisions so i don't know it thats possable or not, but if it is then that should take care of the problem

dimebag

all the numbers were in GPM. and yea, i ran it rly hard before i went there(racing w. a 88 iroc a few times, yes i won, lol) i think ill try the 87 gas, new o2s, and an oil change... and ofcourse ill let yall no.

chicogotgreen

help me pass. advanced timing and no cat. hehe....soooo, am i completely screwed? Oh, and does anybody have any idea what types of places that do car inspections DONT do emissions testing in Missouri? Ive heard from people who say they were and others who werent tested....but i always forget to ask a location.

dimebag

dunno man, i no for me in maryland. we go to one place for inspection(local garage, w.e.), another for emissions, and one more for the MVA.

chicogotgreen

yah, im MO everything is in one place, and they are apperntly very lax with enforcing emissions testing...in some places. I might just have to bring a cash bribe.... cheaper than buying and installing two cats anyways...

dimebag

yea, i used to live in DE, it was like that... its so much more convienient...

94gtcoupe

live in michigan now that is some convenient emissions testing.... wait remind me waht emmissions are again