Abstract: An internal combustion engine carburetor is provided with a means of remotely changing the delivery of fuel and the metering apparatus of said carburetor so that either of two (2) different liquid fuels having different air to fuel stoichiometric ratios may be used in the same carburetor/engine assembly.Two (2) different metering rates are accomplished by changing the available flow areas of the fuel metering jets or orifices by means of an electric solenoid operated mechanism.A switch on the dash operating the solenoids, fuel selection, and fuel delivery for the chosen fuel allows the driver to select fuels at the proper combustion mixture.