Thrust issues with AFR gauge and Brawler carb

Hysteric said
Hard to tell from those photos but most likely an ignition issue. When the calibration is close to stock then I would suspect ignition.

I've seen a 0.5v drop in alternator voltage output change the burn to make it look rich when the AFR didn't change.

I agree but when he has four open emulsion holes and that AFR graph he needs to clean that up first.

But I agree the ignition looks a bit weak. I just didn’t want to blow him up with more stuff. I know it gets overwhelming.