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Could be an exhaust manifold leak? The compression test has all cylinders within 10%. Is the spec <10%? I forget.



I have searched for a exhaust leak and can't find one. Also my experience with exhaust leaks is that they usually go away or get much quieter when you let of the gas. This seems to be more RPM related then throttle position.

1971 Hemi Cuda 2005 SRT-10 Regular Cab Flame Red. 12.771 @ 109.67<---TIME SLIP--Video