Conventional wisdom is now NOT to run a new motor conservatively.<
Quality engine builders have made that claim for many decades. I bought a reman engine in 1987, custom-built for me because the builder was a coworker’s sil. My engine builder told me that after 300 miles, DRIVE IT LIKE YOU STOLE IT.
I mentioned that it seemed to be an extreme. The engine came with a 20k/2-year, 100%, no-questions-asked warranty. He looked me in the eye and said, “Until the warranty expires, this engine belongs to me, not you. Why would I tell you to do something that would f/up my engine”?
Also, look at the picture of the guy. Do you think he followed the engine builder’s instructions to the letter? The guy looks different, but it’s the same guy beating on the same engine
Warning: If you’re going to light’em up, make sure that you’re in a designated “burnout zone.” All you have to do is look for the signs, and I posted a picture of a burnout-zone sign so that there isn’t any confusion.