Here is another angle that might better illustrate the issue.
#1- again, you can see the rubbing on the top of the servo with the servo horn.
#2- look at the angle of the throttle linkage arm. Again, I can’t change the angle of this, because I can’t rotate the carb slide set screw anymore, or it will be impeded by the center diff mount.
#3- this is the closest I can get the set screw to the center diff mount before the diff mount prevents the carb from going out on throttle.