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Old 06-27-2022, 02:36 AM
w72 w72 is offline
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Join Date: Dec 2019
Posts: 33
Default Octane vs. ethanol

Short version: 91 octane non-ethanol or 93 octane 10-15% ethanol?

Wondering which fuel would be more forgiving on a 9.7:1 467, basically a Jim Hand build. 95cc 6x heads, 250cfm. Flat tops, all forged, RAIV cam, Rhodes lifters. 3750 lb T/A, manual, 3.70 rear, 28" tire.

 


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