E85 will require more fuel for the same power level, i would recommend what i'm using for gas (i like overkill)
The weldon series of pumps... they are absolutely nasty flowing and can withstand really high pressures, and any fuel, including ethanol and methanol.
http://www.weldonracing.com/view.pht...20Fuel%20Pumps
I have the DB2025-A. Superior pump that is greater than anything out there by far, and is rebuildable.