I wasn’t sayin to run leaner at all. I just said it looked pretty close in my opinion. I just wondered why a sprint engine needs to run richer. And as I said I’m not arguing. I’m just trying to get more educated and exploring why that is.
My view would be that optimum power is optimum power. Regardless of what kind of track you are on. The only difference I see is going quickly through the power band many times a lap on a sprint track vs long extended heat building pulls when road racing.