Magnum questions?

I wouldnt. That cam will be safe for sure with stock heads, and probably fine with the stock springs. But for 203$ for springs, retainers and locks it's something to consider. The stock springs really are weak.
Here's a link. This guy's good.
Dodge Magnum 5.2/5.9 Valve Spring Kit Wiith Matching Retainers and Keepers
Thanks just got cam installed today ,just gotta get springs.waiting on .027 head gaskets and roller lifters.
Dave.