Quote:

The power gains come from the fact that you can put more fuel in the cylinder since the A/F ratio is lower.



The reason you can put more E-85 fuel in (richer) is because the fuel is oxygenated, its oxygen content is higher than that of gasoline.

That is where the power increase comes from, more oxygen and the fuel to go with it = more power.

There is a power increase at the same CR, icing on the cake is its 100+ octane rating which allows a CR increase for an even bigger power increase.

Here in ND it has all the normal road tax on it.

Jesse Lackman RevSearch Amsoil Products FBO Dealer - some parts available online FBO Systems home page