Ok, I got it fixed.
First the rudder/nose servo was in a bind because of the pushrod going to the wheel. The hole in the firewall was just big enough to slide the guide tube into. Consequently when I moved the servo back and forth the the wheel arm would swing around and make the pushrod slide against the small hole in the firewall. I just took everything apart and drilled a bigger hole. Now the pushrod has plenty of room to move. The wheel turns further than ever.

Second the throttle pushrod was basically snaked like a vine through the guide tube and came out above the engine bracket in an odd position far above the carburetor. I first cut a little notch in the frame closest to the servo to give the tube and pushrod some room. Next I put two 90 degree bends at the carburetor end of the pushrod. I got both pushrods to a point that they would slide back and forth very easy with just a push and pull of my fingers. Now they work perfectly with no buzzing at all.

Now I understand that ARF means Airplane Ready to Fix. I was amazed that it would come from the factory with the pushrods in that shape. I am glad though because I will have a good understanding about how to run servos pushrods when I build my Fourstar.
RC Ken is worth his weight in gold.