I wasn't really sure what all it took. I don't have a tuner, but I do have a PCM with adjustable timimg "Happy Knob" I have this from back in the day when my car was actually fast.... I also have an AFC, so was just wondering. E85 wasn't ever an option before but a couple more places near by have started carrying the gas so I guess its an option now. I guess I need to look into the fuel pump issues.