Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Chevy 4.3 vortec, diagnosing backfire through intake
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Old 02-09-2013, 12:55 PM
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T-bucket23 T-bucket23 is offline
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Popping through the intake is usually a sign of a lean issue not a rich issue. Your spider may be plugged up. I believe there is an upgrade kit for this. Maybe someone else will chime in with the part #.
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