I keep failing my hydrocarbons. I need .8 gpm to pass, but I keep hitting a .9.

I already did a tuneup and added"pass emissions"

what else can I do, reduce timing?

Also what is this dry gas alot of people say helps their cars pass?

 

You need to either change your cat, or do something to the air pump. I heard that the V6s don't always pump air, only certain times. You need to burn off your HCs some how. Do you get in your car, and just drive to the station, or do you go for a long drive then take it in. The longer you drive, the more efficeint your cat will be. Try that.

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'82 Firebird, dead stock, 9 bolt disc rear, over 200,000 miles and still going strong, more to come...
http://www.spinfrenzy.com/stingerssx...easures.html#4