Thread: 87 vs 91/93 Octane?
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Old 09-15-2004, 02:01 AM
judge_jury_executioner_69 judge_jury_executioner_69 is offline
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Join Date: Dec 2002
Location: Fort Wayne, IN
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i have a 428 with 6x-4 heads ( 8-8.5:1 cr ) and its pickey about gas. i can run 87 octane but it hesitates and dont want to go when i romp on it. 89 is a little better but not as good as 91

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