Thread: highest C/R for 93
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Old 11-30-2010, 08:23 AM
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zrayr zrayr is offline
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Location: NE Oklahoma, OK
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on my 289 w/ stock pistons & stock iron heads I have a CR of 10:1 and have no problems with 93 octane gas. Advance is 40 degrees, or 33 degrees with vintage Paxton. Its been several years since I've ran an FE on 93 octane so I can't comment directly as gas formulations have changed.

Z.
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