so i am running on crap 91 honda octane im getting raped at $3.60 a gallon wtf!

i already have a walbro, bigger injectors and crome

so im thinking all i need to do to convert to ethanoal is to get rid of all the remaing rubber in my fuel system and retune my ecu while running on this ****? also maybe advance/retard timing?

i came across a website that had a diy e85 machine so i will be doing this let you know how it all pans out