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Old 04-06-2005, 10:53 AM
crush56 crush56 is offline
Ford Tough
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Rattling noise at load

Need help.... Ive got a new 351w from Ford Racing. It makes a rattling or ping noise at around 3000 rpm or when I jump on the gas. I'm running 91 octane with timing set at 10 deg. Under 3000 rpm it runs great so I'm confused. Could it be detonation? or Fuel mixture?
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