When good is not enough, Camshaft time again.

I’m not looking at datalog screen shots very often…….but, to me……on those two it looks like the converter is flashing 4000 on the first one, and 4000-4200 on the second one.

Based on the fall back numbers after the shift, it doesn’t appear the engine is “driving thru” the converter during the gear changes.
That being said, sometimes what’s fast down the racetrack doesn’t look great on a graph.
There could easily be .1-.2 ET in a different converter, but imo, the current one doesn’t present any obvious problems.
The 60’ times are kinda weak for the “sum of the parts”, which often points towards something left on the table, converter wise.

I’d still try changing the cam and testing, before changing the converter.
The other thing is, I’ve seen situations where a looser converter shows less power on the chassis dyno, yet runs a quicker ET in the car.