Problems breaking in new cam

I got the MP 284/484 cam in tonight. I used Rotella-T, GM EOS and a new filter. I started it up and had it pegged at about 2300 rpm. I would hit the throttle up to 4000 every couple of minutes and back it off after 5 seconds. After 13 minutes my temp went to 230 and I had to shut it down. It proceded to puke out water for a few minutes. What I would like to know is. Was this long enough to break in the cam or do I have to start over? I know it will overheat again in my garage.

Jack