Yes the alcohol cools the intake charge which is why TQ production is better, but when you factor in the fuel volume req'd because stoich is 9.7-1 with E85 but in reality it is probably more like 6.5-7.0-1 that is alot more fuel you have to make room for in the induction tract. So you have the fuel displacing the air which is why upper RPM HP usually suffers compared to race fuel. Basically you need a larger intake tract to take advantage of alcohol. J.Rob