[urq] Removing baked injector inserts from a WX head

[Thatcher Hubbard]

Hey guys,
 
  Finally got my head (WX) back from the shop.  I noticed after I had picked
it up though that they had not removed the old injector inserts.  I tried
with a pair of pliers to pull them out but they just cracked off (at least
the short lip on the top did).  Should I fashion some sort of hook device to
pull these out or try to cut them out with a good utility knife?  Just
looking for any BTDT from the list.
 
 
Thatcher Hubbard