What cam to use in 340

Hmmm... RRR That magic Crane cam was run in a 70 340 cuda in high school with 3.91's that ran high 12's all day long. What would you suggest if I were to buy something? I do realize what heads I use may change things somewhat; having smaller chambers and probabally flow a little better than the "J" heads.

PM on the way, sir.