I think you will get mixed feedback as I spoken with a couple well known viper tuners on this and some say dont run to redline unil 1000 miles and others say they dyno a new or rebuilt engine from jump. I personally see no reason to not wait until 1000 miles as it wont hurt but anything before that "might". When I had my engine rebuilt, I did the break in process outlined by my builder which is the same as dodge, 200 miles 3k and for every additional 200 miles you put on it, up the rpms 500 until you get to 1000 miles and have at it.