Frode Berg wrote:

Is there anything we should be aware of the first few hours running a newly
installed factory overhauled engine? It's a Lycoming.

Hi Frode,

I had the honors of breaking in my 360 AK4 Lycoming in my Sundowner.

For the first 25 hours, I ran it full throttle and full rich and flew no
higher then 2500 feet. My A&P said what ever I do, don't baby it. Run
it hard and rich for those first 25 hours.

Allen