Break in time for new engine

I just finished installing a 408 stroker in my Cuda. I'm using Royal Purple Break-in Oil. The car will be mostly street/strip use. How long do you all think on break in time? Should I baby it for about 500 miles? Or should I just run it now like I plan to in the future? It's already been on a dyno and tested at 470 HP. I'm also running a 727 trans, 3000 stall converter, 8 3/4 sure grip with 3.73 gears. Thanks for your feedback. :)