Howard's or Lunati
I would certainly get a custom grind, especially if it is from one of the larger cam companies. They have more lobes to choose from, & as mentioned, companies like Comp, Bullet & Howards [ might be others ] have dedicated 904 Chrysler FT lobes that have more lift & area under the curve than Chebby or Ferd lobes. Because of the huge inventory they have of shelf grinds, it would be worry me that these might be ground across the border at Pedro's with inferior equipment.....
Hence, I like to get custom grinds.