Larger calipers

yes...you should make sure the hydraulic ratio is to your liking.I have the later 2 3/4" cuda calipers on my '70 Duster with a 1" master.Bled the brakes and it seemed like there was a lot of pedal travel.
when i road tested it i was surprised at how effortless stopping was.Car stops quickly long before pedal ever gets hard... like power brakes.
.. after things wore in and rear brakes adjusted themselves the pedal travel is less.