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Old 03-05-2015, 12:07 AM   #4
Oldriginal86
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Join Date: Apr 2013
Location: Pasadena, Maryland
Posts: 160
Re: Factory emissions equipment on 1986 k10

Not all '86 trucks with cats. My K2500 GMC didn't have them due to heavy duty emissions. Engine code M. It did have A.I.R. System on it though with 2 pumps. It was set up for leaded fuel if it could be found.
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