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Old 12-20-2017, 12:13 AM   #12
Captainfab
60-66 Nut

 
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,246
Re: Best investment with a TBI 454

I have the XE268H in a 9-1 454 and personally I would not go any bigger with that compression. It runs just fine on 87 octane.
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