Thread: carb backfire edelbrock 1406
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Old 06-07-2004, 04:41 PM
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xlr8or xlr8or is offline
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Something has to be igniting the fuel in the intake or the ignited charge is being allow back through the intake by an open valve. You say it only happens at high RPM, Are you maybe getting some valve float? How old are the heads? How much lift and overlap? Valve Springs? Valve adjusted a little to tight and not sealing?? Just some things to ponder.
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