After reading all of these post I wonder where a mechanical fuel injection system fits into this picture. My goal is to run E-85 with MMSA and by the time I get my car ready in 2013 ILSS will supposedly be running gas only. After reading all the rule discussion I hate to spend the money on a mechanical fuel injection system if I can't use it. I have the stock EFI off the bike but by the time I spend all the money on conversions I might as well spend a little extra on the mechanical injection to run with both groups.