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1971 Buick 455 GS F/SA G/SA Build
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08-20-2017, 10:42 PM
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Dwight Southerland
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Re: 1971 Buick 455 GS F/SA G/SA Build
I thought the index was 11.40 and was translating to the altitude factor. If the uncorrected index is 11.85, then the altitude factor is 11.85 / .9508 = 12.46
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