[Steedafied]

I get the additional 27% of fuel required, this is on a mass basis and not volumetric. The additional fuel will take up space in the runner. What I am getting at is I don't think the runners are at full capacity, so overall you don't loose 27% of your intake runner volume. You loose the volume that would correspond to the mass of 27% extra E85 required to get to stoich combustion. Now if the charge is cooler and more dense then this 27% extra mass will occupy even less volume than if at the same operating temps. Now throw in boost, making the charge even more dense; even smaller volume occupied (thus even more fuel and air can be introduced into the runner). I agree that some of the "space" for air will be taken up by the additional fuel, just that you are not loosing 27% by volume of space in the intake runners by running E85. I have no baseline for HP or torque changes either, just looking at it from a chemical point of view.

Yes, and on paper this looks even worse than it actually really is as well. Since ethanol has more mass per volume as well.

 

[Steedafied]

Yes it IS A FACT, YOU WILL GAIN POWER ON E85 over gas.
Look, even GM rates their flex fuel vehicles more hp and torque when on E85 vs gas.

"Later models introduced another version of the Vortec 5.3-liter V8 as the engine is now capable of running on E85 ethanol. When the 5.3 is running on normal gasoline, it produces 320 horsepower (240 kW) and 335 pound-feet (454 N·m) of torque whereas its output rises to 326 horsepower (243 kW) and 348 pound-feet (472 N·m) of torque on E85"

"The Flex Fuel 2011 Chevy Silverado is designed to burn E85 fuel at maximum efficiency. Take the 5.3 flex fuel engine as an example. On gasoline the engine creates 315 horsepower and 335 foot pounds of torque while on E-85 the 5.3 flex fuel engine generates 326 horsepower and 348 foot pounds of torque."

If the factory gains power from switching and you can't find any extra power, well then you must be phucked!
The end.