I am also very interested in nthis subject. Sorry to highjack./...
I am putting together a 454 out of spare parts that I have lying around...I have a rotating assembly that is 12.5 to 1 . I am thinking of trying e85 just because I do not want to buy pistons and have it rebalanced and there is ann e85 station down the street. I will have to buy a carb but I need one anyway....It is a car that will be driven rarely and power isn't a concern....just want to use the parts I have but using race gas is a pain since you have to go buy it someplace and then poor it in the car...can't just pump it in. I used to run CAMII in my small block on the street because they sell it at SPEEDWAY gas stations... They would never allow me to pump it into the car...I had to put it in a gas can first. So I would drive up to the pump and hold up the can...they would turn on the pump then I'd pump 5 gallon into the can,poor it into the car,then 5 more gallon into the can then the car ...lol
etc. That was when it was $3.00 a gallon and pump gas was less than $1.00