I was hoping to buy a hotter cam last summer while my 2.5 was apart to be rebuilt.
Had no success getting a Mopar performance cam , they supplied my valve springs , the same springs that would have been fine to run with a hotter cam. I ended up using a stock replacment cam and lifters , push rods , rocker arms and pivots , all of it supplied by the machine shop that re-ground the crank and bored the cylinders.