I ran around 3-4* positive caster in my drag cars and set these specs up with 1" of suspension rise in the front. Ran straight and solid at triple digit speeds. Had much higher steering effort, but with 4" wide tires, it wasn't much concern.

The more body roll a handling car has, the more negative camber it may need to keep the tire upright. Softer spring rates will typically require higher camber numbers than stiffer spring rates.