Sounds like you could lean out the main jets just a hair (perhaps 2 numbers) and get just a little more fuel when you mash it by playing with the accelerator pump, not gonna see a whole bunch of improvement based on those numbers. High swirl and tight quench will run better at leaner numbers but those open chamber heads bite a big one and will not like going really lean.
I had the thought that the rich condition that I am seeing when the throttle is closed is unburned fuel due to the cam and low compression. Might need to open the throttle blades a little more but 2 points on the gauge is a lot of hydrocarbon.
I also spoke too soon on the idle numbers. Once it warmed up outside (mid to low 60s, really nice today) and the motor finally got down to it's normal idle speed, it was under 12!
Guess I might need to go back and look at the timing again too, probably could use more?
