Looks great. They appear to be Kelsey Hayes 4 piston calipers. Are you going to paint them with some high heat paint? If so what color? My vote is for either orange or cast iron gray.
Back in the day a buddy of mine had cragar S/S on his 73 challenger. He used chevrolet orange "oh the horror" on the drums in the back and on the calipers on the front to make em "pop" (make em stand out ) behind the spokes of the mags. Not sure what wheels you plan on running, those ansen sprint wheels your car has would look great with a bit o color poppin out from behind the holes.