I have put this on here numerous times, here goes again..Maybe no one reads these things...
Walbro carbs can be bought from a few thousand small engine repair shops in the US..
One of the largest suppliers is V E Peterson in Ohio, 1 800 537 6212..They can sell you any Walbro, Tillotson, or Zama made and can point you to a source in any state in the union...
CAN'T GET ANY PLAINER THAN THAT........