One thing for sure, it isn't a Mopar Performance cam. I'm quite sure the "272" refers to advertised duration and MP/DC never named cams for their duration.
It most likely isn't an Isky cam because Isky usually had 270 degree cams, not 272.
So you're looking through all the old cam catalogs looking for cam families with a "9" or a "91" numbering prefix for B/RB engines.
R.
no, is not a purple... which in any case I think MP never got stamped? ( not on my 280/474 at least )
I'm really unsure where to search. Comp doesn't have ant duration rate like 272. I think neither Crower
