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air fuel ???
So I recently put a wide band gauge on the car and punched out my cats when I had the car dynoed about a month ago my air fuel was 11.8 pretty much accross the board however since punching out my high flow cats and installing my gauge the gauge reads 10.8 its a prosport gauge any ideas? did the cats change this or is there something I need to know about these gauges car seems to run pretty much the same as before
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2011 2SS,fti th400, ECS 1500, Flex Fuel, Boost built 376, squash fuel system
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