Is the 72 the same dimensions around? etc. Is it a matter of painting it black? wasnt there a cheesy black repop of the 70 a few years back made of plastic?
Same diameter and height. Some of the 72-73 air cleaners had vertical ribs an inch or so high that come up from the bottom edge. There was a fiberglass or plastic repop years ago, and they are about as hard to find as a real one.