SO guys, I'm confused...do most people doing a rebuild just polish the cam and re-use it with the bushings as-is? And if so, do you place the cam towers back on the new head loose, insert the cam, then tighten down so all is aligned right? I wanted to get a new cam and bushings just to have everything good to go...I remember having a 300SE with an M103 engine that had a cam that wasn't hardened right by the vendor...MB had a recall when new as I recall...cam wore quickly on a couple of lobes and ticked like mad...I didn't want that to happen here if I switch for another cam that is not new...