if i where to upgrade the cam would i need to replace the rockers, valves and springs? or would stock be the best for performance?

 

There are mild cams that you don't have to replace anything. Just dig through the descriptions www.summitracing.com is the best place to shop. If you have to call them for more details than the website gives.

There are higher cams that will require rockers springs rods be replaced, it all depends on what you get.

A good cheater way to get a mild cam performance is to get 1.6 roller rockers they give you a slight advantage over stock rockers. I installed some check out my post on it. https://dodgeforum.com/forum/2065727-post3.html