Originally Posted by stock48

I thought about that but my Holley EFI wiggs out for awhile when switching fuels, and tunes. Even a 5% sway in ethanol content will start a bunch of surging, and stalling until it adjusts. I have another HP efi here for another project. Thought about swapping ECU's back and forth; but what a pia! I just worry about the E85 and getting a bad batch of it or not being able to find it at all.