I decided to do something about those to long screws,hanging in the breeze,that secure the throttle plates. If you pull off the air inlet hose,open the throttle wide open,you will see 3/16s on an inch of excess screw below the throttle shaft! This would cause some turbulence,so I ground them to about 1/32 above the shaft,and put some thread sealer on them. You need to remove the throttle body to do this.