RE: webra 160 MC carb with futaba 9c help !
Mike-
You will want to run one or two shims in the head with 15%. The engine is made to run on FAI which is zero percent.
I run the pump at the factory setting (mine is .14" out). You should run the hard line that comes with the pump for the pressure line per the factory. A good replacement is K&S 411.
Generally speaking, the throw for the mixture control is about a centimeter. On my radio, the small Futaba wheel isn't quite enough, so I use the next bigger hex arm. Using what you've got, carefully measure your idle setting from some reference point (the firewall for instance) and set the top end 10mm away. You should have 10% or more spare at the ends on your radio programming. Check the direction by blowing through the inlet tube to make sure flow increases with throttle.
That should get your endpoints close enough to go back to the field.
-Ron