Excellent atomization of fuel. Improved fuel economy and throttle response. Help with problem carbon build up. Product Features:Precise Control Of Fuel Delivery/Atomization For Increased PowerImproved Throttle Response And Better Fuel EconomyAll New Units; Not Modified Or Remanufactured From Used CoresLow-Mass Disc Design Ensures Accurate Metering ControlControls Even At Ultra-Low And High-Duty Cycles