Actually it is better to see the trims bouncing around. What you see here is trims are maxed for much of the pull. That means car is delivering the max amount of fuel it can to try and achieve its targeted AFR. While it is normal for the AFR to be lean early in the pull, this looks too lean for too long to me.Timing looks good. I’m a little confused by your fuel trims though. Not sure why they would dip like they did.