ORIGINAL: Hobbsy
Here is a similar set up on an RCM with a Saito .62. Me, "Big Dave" on the left, "Little Dave" in the center and Grandson Jerin on the right.
That's a nice setup, but all you really have to do is run the pushrod out of the stock nyrod location out past the cylinder and then bend a 180 in the pushrod and go back to the throttle arm.
The first time I heard of that I laughed, but then I tried it. I eliminated the bellcrank and it worked perfectly every time. Boy, was I red faced. Fortunately, I was alone at the time.
Ed Cregger