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1992 Chevy Suburban 5.7 and High HC
Posted to Technical Discussion Forum on 2/16/2015 54 Replies

I 1992 Chevrolet C1500 Suburban Silverado, Emissions Photo I have one Suburban with a High HC not passing ASM state inspection, it will pass if not tested on Dyno machine, Engine running very smooth, and plenty of power, I have changed Spark Plugs, Cap, Rotor,... Login to read more.

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