E85 Street\Strip build??

Guitar Jones said

I don't think you need to go that high on the compression. E85 is about a 106 octane rating so 12-1 is good. None of the factory E85 flex fuel vehicles run that high and they run fine. I do know that Mopar uses a special oil, fuel hose, fittings and bearings for the flex fuel vehicles because of the corrosive nature of alcohol.

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I've read (but have no personal experience) that an engine built for 12.5:1 and a relatively stock cam (daily driver) will run great. If he's thinking of going to a cam with the duration in the 240's @ .050 for street and strip use on that 408, I would think that 13.5 would be reasonable for aluminum heads.

In reagards to the flex fuel factory stuff running OK at lower CR's, I agree, but they have to run on both gas and alcohol so they don't have a choice.

What do you think Guitar?