I need to switch from race gas to E-85 and was wandering what else needs to change besides the carbs? The motor is 525 inch chrysler with 13 -1/2 to 1 and a tunnel ram with two 750's. I know all the fuel consumption difference and the back and forth on corrosion etc. Im just looking at what other hard parts I need to change. Also it looks like about $600 difference between converting the existing carbs and buying to E-85 ready carbs but do the converters do anything that the carb manufacturers dont? I was thinking about keeping the current carbs in case the availability of E-85 changes or the price changes to not make it feasible to use. Thanks in advance.