"If fuel leaks out of the top of the bowl on a curve or from hitting a pothole, then it is likely set too high."
This is the point I have trouble understanding. If I simulate a warped air horn by drilling a 1/64" hole, in the air horn, just above the fuel bowl, and the float setting is perfect (including allowances for type of fuel and needle valve construction), gas will not leak out the hole? Pot hole, curve or parked on a hill it will not leak?
No idea how to respond to that one.