A kid on FJ was running E85 and he blew the thing up. The problem with E85 is that the 85 in not regulated. If you want big numbers you're better off with race fuel.
FR '11 FF Mod pick
FR '12 Carlisle Nifty Fifty Award/Best in Boost/Best 08-11/Finest 5 Pick
FR '13 Carlisle 1st Place Award 08-11 Focus/1st place 08-11 Focus (FR13 award)/FSWerks pick/Ford Racing pick/Finest 5 pick/Top pick in the finest 5