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Spark plugs


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From their web page:

 

Applications of Champion RV17YC:

BUICK, All V8 Engine, 1971-1974

CHEVROLET, All In-Line 6 Cyl Eng, 1976-1979

CHEVROLET, All V8 Eng, 1971-1973

 

Looks like they recommend the RV12YC; Gap .044; for your new 86 2.8 V6, if that's what you are asking about. The RV17YC would be too hot of a plug I think.

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