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Old 08-29-2004, 01:26 PM   #6
SanitysBane
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Join Date: May 2004
Location: Lubbock, Texas
Posts: 2,121
well i usally run my truck on 93, but i thought that sence the 454 only has 8.6:1 it could handle 89, i was wrong.
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'88 K5 Blazer
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