Wheels aren’t going to change the basic alignment specs. Bigger rim diameters give you shorter sidewalls for a given tire diameter, and that makes them more squirrely to drive. Be certain that pressures are correct.
You can start with stock specs, and add about 0.3 degrees more negative in the front. Have the alignment tech start with the wheels dangling on one axle, then loosen the front and rear adjuster cams on each wishbone and center them for a baseline caster/camber before making further adjustments. Do the same at the rear of the car. A major cause of nervous handling is uneven rear caster angle, and it is almost impossible to measure without factory tools. Centering the cams in the ears is a vital baseline step. Adjust camber by rolling both cams on each side in unison. This adds or removes camber angle while keeping the lower ball joint from moving forward or back, which would screw up the caster angle he just centered.
