It sounds like a may be a touch too rich. Screw the mixture screw out a bit as you screw the idle screw in until you get a smooth idle and when you blip the throttle, the engine responds. If it quits when you open the throttle, you may have gone too far with the mixture screw.
It's just a nice balancing act you have to perform to get it right. Don't be afraid to fiddle with them, just know where you started. Screw both of them in all the way and count the turns it took you to get there, then you can always put them back to the original spot.
Bare
Bare