Another good place to start is to figure out if the car is running rich or lean when throwing the misfire codes. This can elimate some possisbilites depending on rich or lean. Grab a scan tool and look at the short term fuel trims. (Looks up a video on what STFT if you don't already know). Good luck man!
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Stillen G3, z1 Intake Manifold, Stillen Headers, Z1 HFC's, Stillen Catback. 330whp 267 ft- lbs tuned at Z1 motorsports.
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