Originally posted by DemonSVT:
Heck Brad even ran his ~11-11.2:1 hybrid on 87-89 octane fuel with no detonation problems and still making decent power.
Didn't run anything but mid grade gas 89-90 octane since that's what's cheapest here in corn growing country. Premium never did a thing for me. If I would buy gas with cash, I guess premium could have made me faster (lightened wallet), but I pay credit at the pump. 
http://www.bnmotorsports.com
"And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my CEG brothers. And you will know I am the Moderator when I lay my vengeance upon you."
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