So it looks like you replaced your ride height washers with some generic spacers instead. Are they exactly even side-to-side? Like same setup on both front left and front right spindles? If they aren’t, your front ride height will be uneven side to side and will cause it to pull one way.
I would recommend sourcing the correct washers/spacers for the spindle so you know there’s no play in there and so you can set the ride height appropriately.
The dial you are referring to on the top is the caster/camber pill. It’s eccentric, so you can see the hole is not centered in the pill. Turning that will move the top of the kingpin around, adjusting your caster and camber on the front end. At the moment, it looks like you have nearly maximum negative camber (top of kingpin tipped in toward the center of the kart) with a touch of negative caster (top of kinping tipped forwards toward the front of the kart). Because the pill is an eccentric, you cannot adjust caster and camber independently, so when you rotate it, both settings will change. The setting you have it at now is fairly unusual. I wouldn’t typically run that much negative camber.
My recommendation would be to set it to neutral camber and positive caster for now, as that’s going to be the closest to the baseline setup you can get with those pills. To do this, you would want the hash marks perpendicular to the frame, so horizontal, with the thick part of the pill toward the front of the kart (top of kingpin tilting backwards). Basically, rotate it counterclockwise until the pill is centered within the screws, with the hashmarks pointing dead left and right. Set both sides the same.