I made about 10-12whp more with e85 as well on my na setup but had to recently switch back to 93 pump because there are no e85 gas stations in mobile,al(moved from atlanta)
But there are many factors involved as well like importracer2123 said. One factor is make sure all ur fuel lines are upgraded to SS. as many as u can if not all of them. over time e85 eats away at the rubber lines. your injectors have to be big enough because e85 takes more energy, have an aftermarket fpr, etc etc etc etc............................................
