Front track width

I had my front control arms made an inch narrower on my Duster with 2.25 back spaced wheels. Didn't really see the difference. Thought I would try and go 2" on my Demon, going for the nostalgia funny car look on the street.
when you say "narrower", do you mean the sides perpendicular to the frame rails, or you moved the ball joint toward the frame rail?