The fuel inlet system maintains a specified fuel level in the bowl, permitting the basic fuel metering systems to deliver the proper mixture to the engine. Fuel under pressure enters the fuel bowl through the fuel inlet fitting in the air horn. The amount of fuel entering the fuel bowl is regulated by the distance the fuel inlet needle is raised off its seat and by fuel pump pressure. Movement of the fuel inlet needle in relation to the seat is controlled by the float and lever assembly which rises and falls with the fuel level.