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I think I saw that, it beat out the race gas. IIRC they got most of the gain running as low as 50% ethanol if your pump and injectors aren't quite enough to handle 85% ethanol...
Another thing to consider is a big cam will not help you much until you get near and past 6000rpm. The E85 gives you similar top end bump but also up to 100-140 foot pound torque bump in the midrange. On the street which would you enjoy more if you chose one and not both?
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