
06-23-2007, 08:30 AM
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CC Member
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Join Date: Aug 2000
Location: Glendale,
AZ
Cobra Make, Engine: SPF 468ci 550HP + 150HP NX Matching Shelby GT500 650HP
Posts: 4,254
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Not Ranked
Arizona's Premium fuel is only 91 octane. You should be fine. I have not seen 93 octane anywhere. Re-tune (timing) to adjust if needed. Your results will be the same.
AZ Bob
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AZCOBRA, AZBOBS Plates & JAFMO
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