Thread: Compression ratio for 91 octane
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Old 01-14-2009, 07:37 PM
WildBill1965 WildBill1965 is offline
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Cobra Make, Engine: Superformance #2689 Roush 427R TKO 600
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93 octane 10.5 427 Roush, I asked about the compression and they said ther were at the edge!
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