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To save time, we installed two separate 8-gallon fuel tanks from ATL, one filled with racing gasoline and the other with E85, a blend of 85 percent ethanol-or corn liquor for you hill folks-and 15 percent gas. The E85 tank had to be fitted with special foam that would not deteriorate from exposure to the alcohol. This is very important to consider if you try to run that type of fuel. We switched fuel lines from one to the other when switching between fuels and then flushed the line before running the engine. The carburetor needs to be built to withstand the corrosive effects of alcohol too. When using the fuel-injection system, we could conceivably switch the fuel lines from gas to E85, not drain the fuel lines, start the engine and when the E85 got to the injectors and was pumped into the engine, the computer would immediately alter the fuel flow to the correct amount and the engine wouldn't even stumble. Try that with a carb.