About a month ago, I was having a conversation with one of my friends who has far more automotive knowledge than I. Just to set the stage, when I modify, It's bolt on. When he modify's, welding is always involved. We were talking about the modifications that mustang owners typically make and the one I've done so far. He then asked me why haven't I put performance cams in my engine yet. This guy loves V6 engines, and he's a huge fan of the buick grand nationals, so when he asked about why I haven't recammed yet, it's with the same inflection as if he were asking why I haven't changed my tires yet. Now I know that there are performance cams for the 4.0, I've seen the at summit racing for around $300. And I get how recamming the engine increases the duration that the valves stay open and closed, basically changing how the engine breaths. However, I didn't think that we could simply recam our engines, and be done with it. I can't remember where I read this, but what I recall is that the rods in the 4.0 are prone to failure with a large increase in power. So I just figured, if you're recamming the engine, you're also upgrading the internals as well. Anyone with some knowledge on this, please chime in. It seems like a project I would have to have a mechanic do for me, but if performance cams can be put in without the extras involved, I may consider it.