Re: Bad cam 7.3?
Although wiping out a cam lobe is fairly rare, it does happen. I've seen it several times, usually from a roller seizing up or lack of oil or both. I've only seen one cam break, but that was do to not torqing in the correct sequence.
It's a fairly simple process. Pull the valve covers, if nothing's bent then turn the engine over, by hand or cranking and watch the rockers. Find the one that doesn't move and get some eyes on the lifter. If it's pumped up, you got a bad cam.
Ps...Im pretty frickin awesome!