Anyone have any experience with changing cams in crate?

I would leave the cam alone, IMO

You can get faster ramp cams but those cams don't last as long and need to be broken in right--first crank the engine fires up and holds 2,500 rpm for 20 mins without over heating while using top notch breakin oil.

For a newbie leave mopar everyday people cam in it. With 3.91 gears and lightweight car, the motor will be one happy camper