What would i need to run e85 and what are the benefits?

 

Larger fuel pump and injectors and a programable ECU with a tune.

Benefits include the ability to make more horsepower with an additional safety margin over standard pump gas. You will be able to run higher boost levels and more advanced timing with less chance of detonation.

 

There is all kinds of info on it right here. Read up as much as you can.
It's gewd stuff!