Order of Power on the ST most to least on different fuels using ZFG as the tuning source:
E85(Aftermarket Pump like XDI) - otherwise Stock
E50(Stock Pump) - slightly slower 0-60, maybe a 10th, but several 10ths in the 1/4, due to cooling.
E85(Stock Pump) - few 100ths faster than a 93 tune 0-60...