Originally posted by Mr 2
my engine had the same compression and leak down after 5 minutes of high idling as it did after 1000 miles of driving. I drove easy for the first 40 miles, only going WOT briefly twice during that time. Break-ins are over rated.
you don't get the point of breaking in. It is the seat the rings, valves. The metal has to go through a heat cycle a bunch of them.