69 Z, Headers, VS Stock Manifold and Chambered

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69 Z, Headers, VS Stock Manifold and Chambered

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12-19-2002, 10:34 AM

COPO PETE

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Re: 69 Z, Headers, VS Stock Manifold and Chambered

I don't believe you will see that much of a gain with headers, but there will be some, nothing really seat of the pants. Sounds like it is geared wrong. What tranny you got???? If it's a M21, you'll need at least 4:88 gears. If it's a M20 4:11 minimum to 4:56. Maybe Mark will chime in on the crossram jetting???
Peter

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