06-25-2014, 04:47 AM
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Senior Member
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Join Date: Aug 2000
Location: Ann Arbor, MI
Posts: 3,170
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Re: COPO ZL1 with the yenko performance pakage.
Start here with William's article: http://www.camaros.org/copo.shtml
And, Yenko never had any of the original 69 ZL1's.
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Kurt S - CRG
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