Stuck Air Jets

Any tips on how to best remove the stuck air jets from my VM29s? Only got one out successfully, the tops are all junked up on the others. No more slot for a screwdriver. Trying to be delicate as possible here...

I am going to assume you sprayed them with PB blaster to similar liquid let them sit overnight. If not then I would do that before playing witih it any longer. You can spray them from the top as well as from the intake opening i believe.
Then I would try a small left handed drill bit

Good luck. Take your time they are expensive Carbs.