Do carburetor trucks and EFI trucks have throttles?

I'll tell you for sure. Carburetors and EFI cars have throttles! ! ! A simple carburetor consists of three parts: the upper part has an air inlet and a float chamber, the middle part has a throat, a metering hole and a nozzle, and the lower part has a throttle valve. The float chamber is a rectangular container for storing gasoline from a gasoline pump. There is a float in the container, and the oil intake is controlled by the height (oil level) of the surface of the float. The oil inlet at one end of the middle nozzle is communicated with the metering hole in the float chamber, and the oil outlet at the other end is located at the throat of the throat.