E85 Street\Strip build??

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.