Cam breakin Procedure
One thought that no one has touched upon, and for good reason as none of us like to have to go through this, but that is to use a set of break-in springs for initial fire-up. I did this at the behest of my machinist (who has seen far too many cams wiped out recently, even by people that know what they're doing I might add) on the 340 that I installed in my '74 Duster last fall. It was a serious pain to swap springs on the driver's side with the venerable A Body booster & master cylinder in the way of cylinders 3, 5, & 7, but it ensured no failures. I too used the Rotella T (although I have read recently that even the Rotella T is not exempt from the zinc removal as of this year) as added insurance. Just for reference, I used a Comp XE274H and corresponding springs in this engine. Not having to deal with or worry about this sure makes a roller appealing, despite the additional cost. Just my $.02 as well.