Late shifts after new torque converter.

Brand new fluid after converter change, filter is new also. I've never adjusted bands before. Would the adjustments be the same with a transgo shift kit?
Yes the Band Adjustment would be the same with the Transgo shift kit.

Want to get some help from a mopar person to adjust the 2 bands, or get a good manual that shows how to do it properly. Good youtube videos on the subject too.

Careful not to leave the bands too tight, that can screw up your trans.

Anyhow if it was working good with the stock converter, bands are probably not the issue right now.