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Old 06-20-2009, 09:42 AM
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thorconstr thorconstr is offline
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Join Date: Sep 2002
Location: Tucson, AZ
Cobra Make, Engine: ERA 427" 351W
Posts: 562
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The stock plenum works just fine, I ran the same setup on my 496" Shelby aluminum 427 for 5 years. I also used a FAST computer. Sounds like a tuning issue to me.
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