RE: Area 51 engines
Joe - good looking install!!
Surprised to see you using the standard short "arm" that is on the throttle shaft.
I have always found that short one to be far too sensitive to movements for my taste. Over the engines I've done, I've come to appreciate the 3/4" arm (Hitec Blue aluminum) distance on both the servo arm and the throttle shaft. That usually permits +- 90 ATV on my JR, if I do one end at 5/8", it's 100/100, stop to stop. I do that because it gives me much finer control of the bottom of the carb movement where a click is way too much. Plus, better control of the idle using the trim lever.
That is a good looking installation, for sure!