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Old 12-04-2011, 08:15 PM
COPO_Anders COPO_Anders is offline
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Default Re: Optimizing a 1969 Z-28 302 ?

Thanks Mike, I´ll let Hans know.

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After selling my COPO 9561 I´m now a "postman" with the main project being a 1966 327 2 dr sedan Chevy II.
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Old 12-05-2011, 05:34 PM
miket1 miket1 is offline
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Default Re: Optimizing a 1969 Z-28 302 ?

I agree with Sam, I don't like vacuum advance either, I haven't used it since early 1970 with no problems at all,
as per the CRG report, I set my valves at .026 on intake &amp; exhaust, runs and sounds great.
I use AC R 43 plugs gapped at .040. with the original heads.
I hope you find this helpful.
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