Tuning with jets, Power valves and an O2 guage

Rich will ping just as bad as lean does. in fact, it can be worse. But - remember the O2 will only monitor unburnt oxygen. Lean shows as bad as rich in that regard. If it were me I'd go back to the the mid 80s for jetting and drive the car more. Is there a reason you have to idle it that high? I'd think it would idle cleanly at 800 or so and you will be able to close the throttle enough to get off the mains at idle.