I think it’s called a progressive break-in?
Do a series of a few moderate 3rd gear pulls to high rpms, then let the throttle snap shut, and have it coast down to lower rpms again and do another pull. Introduce some boost. Let the rings seat. Do a few cycles for the first 500 miles, then change oil.
I did my oil at 500, 1000, 1500. Overkill? Maybe, but oil is cheap, why not.
Don can elaborate.