So I recently swapped my car over to e85 from 93. Motors previously gone 9.7 with the previous owner/different turbo. Current setup is a 450 pump, 80s with chip, Teflon lines and a 6766. My questions is I guess, what can I do to get back to the 9 second range with e85 or am I better off just going back to 93 and if so how harmful would it be to my fuel system by switching back??