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Old 11-09-2022, 04:16 PM
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Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR
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Originally Posted by jhv48 View Post
Backfiring on deceleration is usually caused by an exhaust manifold leak where the headers meet the heads. Check that your header bolts are tight. All it takes is a small leak to blow the gasket apart.
It can also be caused by a rich condition.
renaissance man likes this.
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