When to worry about engine noises?

I'm sorry to hear the car hasn't been flogged LOL.. that's all I've ever done with mine from day one. 20 minute break in at home three or four miles around the neighborhood and straight out to Woodburn....
Why would someone have a stroker motor 4-speed and Dana 60 and not flog at every chance ya ever got...

Because I would have to clean bugs off the front end and windshield and rubber off the rear quarters.