carb tuning for running the dial in?
I reckon running the hotrod on the lean side may be asking for trouble when the air is real good. a motor that is rich well change very little as the DA moves around. it's a lot easier to predict et as it will only et a hundred or two quicker as the night gets damp. keep you dial one hundred under at all times and you should be ok. keep a book on your runs as the night progresses.