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The Race Demon is designed for smooth drivability on dirt or asphalt. Customized fuel-metering circuits are developed for rapid throttle response and strong mid-range and top-end power. The two outer vertical channels are idle discharge wells with adjustable idle-feed restrictors shown at their top ends. The two inner vertical channels accommodate adjustable emulsion jets, which introduce the air to the fuel. At the top, between the two vertical channels, are the main well exits. They're angled in appearance and they supply the venturi boosters with fuel.