Check your 273 breather callout. I bet it is aluminum glued down. I have had about two dozen breathers and all of them, including the charger 273 versions and California emissions versions had very thin aircraft grade aluminum "pie tins" glued down. It was cut across the circle so that it would lay down like a decal. A lot of venders offer a very thin Mylar decal which looks good, but doesn't last. I actually have re-popped some of the correct aluminum ones and am about to crank out another set. I also am about to re-pop some other hard to find items very soon.
