Caster and Camber.

Good point 72bluNblu, re "Granny". Factory specs had to accommodate the little old lady Valiant with 24-1 manual steering that she needed to parallel park. Zero caster eases the steering wheel load but is hell for high speed stability. Add fat tires and find a tree. I've had as much as two degrees neg camber and five degrees pos caster in an aggressive car. Firm Feel power steering is much appreciated at that point but you can dice with Porsches and Corvettes with confidence. (given the rest of your setup of course, ie 500 HP is nice)