ORIGINAL: RLSH700
I've always been told that you should baby it still.
See, now I was told something that's somewhat opposite of that - from a number of engine builders:
"Break 'em in hard and they'll run well under hard use; Baby 'em during break-in and they run like a baby."
I don't know how true that is, because I break mine in like I stated above. That doesn't mean I baby OR beat them. I run the tach up and down, but never hold them at redline during break-in and I never let them idle excessively. I NEVER rev the motor before shutting it down. I was told that loads the cylinders, and that's not good for the motor.
Again, the most important thing I do is changing the oil at 1000 miles, which gets the initial load of
new-engine filings out of the lubrication system. Every 3000 miles after that keeps it flowing free with ample oil pressure.