yes im serious. ive had a few cars that i worked on come to me with multiple misfire code on and it always turned out to be the gaskets.
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1999 Pontiac Grand Prix GTP - 3.2 S/C pulley, DHP v1.0, Short Ram, 180 T-stat, 2.5 Cat back, PEM's, U-bend delete, Res. delete, Autolite 104's, Sprint Springs, RAT swaybars, GMPP trailing arms, GMPP Strut Tower Brace, Debadged, Powdercoated black torquestars, SD Hood.
www.thechicagogarage.org www.ilgpc.com