A fuel-air metering and induction system for an internal combustion engine including an electronic controlled pressurized carburetion system wherein a carburetor mounted on top of the intake manifold of an internal combustion engine is provided with one or more throttle valves to regulate the flow of induction fluid therethrough with a mass airflow meter including an air metering valve mounted on a shaft for rotation in the induction passage positioned upstream thereof, the air metering valve shaft having a cam thereon to actuate the metering rod of a fuel metering valve to control the delivery of fuel to a fuel atomizing nozzle discharging fuel into the induction stream immediately downstream of the throttle valves, the fuel metering valve being supplied with high pressure fuel from an electrically controlled, high pressure fuel pump, the output pressure and therefore volume of fuel delivered to the fuel metering valve being regulated as a function of electrical signals received which are indicative of various engine operating conditions and the mass airflow through the mass airflow meter.