A carburetor main body assembly for an engine has a main body. The main body has a single body passage and a single throttle plate. The single body passage has a single intake port and a single discharge port. The single intake port is connected to the single discharge port. The single discharge port is connected to a plenum of the engine. The single throttle plate is disposed within the single body passage. The throttle plate is operable to regulate airflow through the single body passage. The main body further has a first section to supply fuel to the engine and a second section to supply fuel to the engine. The first section is independent in operation from the second section. The first section is a first quadrant. The second section is a second quadrant.