I haven't seen them side-by-side but in pictures the reproductions look "a little squarish" to me. That's probably good for flow, but not so good if you're trying to look original

70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"