Camshaft for 5.2 magnum

There are plenty of aftermarket roller cams for magnum engines that drop right in. And you can reuse the factory roller lifters, dog bones, spider, and pushrods. The stock magnum springs are weak and with any cam upgrade, you need springs. Why don’t you tell us what you have and what you want to do with it as any recommendations without that info is a shot in the dark at best.