How lean is too lean?
This is not right.
Anytime you move the primary throttle valve, you should have a near-instantaneous increase in fueling to match the change in cfm. It's your job to make it so.
AJ - I can see I didn't convey my thought clearly. When I am trying to convey is that MY FOOT is controlling air flow, and that my carb set up is controlling the fuel flow. Before messing with this carb, I would have thought pushing the gas pedal was "adding gas." But, it's adding air … and you're right, my job is to set it up to where when my foot adds air, the setting I have installed adds the required fuel. I'm not quite there as it is, because it goes lean quickly.
So, what I'm going to go home and do is go to the next stiffer metering rod springs. As I recall, I think I'm on the middle springs. What should happen is, as my foot opens the butterfly more, and air can flow in easier, the more open butterfly (and additional air flow) reduces the vacuum, which is what the metering rod springs are "fighting" against. So with the next stiffer spring, those springs should tend to "win the fight more" against the reduction in vacuum. And when the springs win, they pull the metering rods more out of the jets, allowing more fuel to flow to match the increased air.
So that's my next step tonight. Unfortunately, as I type, the thunder rolls outside and I won't get to drive it, maybe not even tomorrow either, lots of rain over this weekend.
7milesout