Ok I'm a little confused;

1) for a new engine it must be really rich.( so there is enough oil to lube and wash junk away and cool it)

2) engine must be at operation temp while your breaking it in.( lets say 220 degrees)

3) can't rev up the engine or work it hard.

so I have a new out of the box engine. without touching the factory setting I drive the car in circles maybe 1/2 throttle ( bliping it a lot) for a full tank.
But the engine temp is only 130 degrees.

I need the temp at least 200.

NOW do i lean it out to get the temp in range? NO supposed to be really rich.
do I cover the fins?
heat up the engine with a heat gun first?

anyway I think you get my point so I'll stop babbeling.
what do you'all do?