bdmartin

E85 is corrosive and your fuel lines, etc are not rated for it. I would not use it at all.

I would start with 25% denatured alcohol and go from there. You can run up to 50% but the more you use the worse it will run - no power, etc. Also retard your timing to increase combustion and exhaust temps - this will drive up the cat effeciency and will help to kill HC's too.

Rick