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« on: December 19, 2005, 05:01:45 AM »
i don't know if its available in your area but there is a product called "Guarenteed To Pass" its alcohol based and makes the engine burn super clean(because of the alcohol) u add it to your tank with recommended amount of gas.i gutted my catalytic converter on my 96 F350 w/460f/i and it wouldn't pass. years ago we used to retard the timing to around 4/6 degrees and lean the carb out and they'd pass. i couldn't lean out the fuel injection on the truck so i retarded the timing add 2 containers of dry gas(its the same as the "Guaranteed To Pass") (alcohol) to about 10 gallons of gas and she was burning oh so clean passed the sniffer and the dyno test.give it a try all u can do if fail,dry gas is cheap and won't hurt anything,if u have a 69 camaro i assume u have a timing light about 4-6 degrees of timing should do it and your on your way.