HILL202 and Crashland and any other GP Cessna fliers,

I am close to mounting my OS.52 in this plane. How have you mounted your engines? Are the cylinder heads exposed? How is the cooling during a hard engine run? How much have you opened up the bottom for cooling? Do you think if I mounted mine so there is NO cylinder hole would I have cooling problems? I have opened up two air intakes aside the spinner and will also probably add a smallish opening in the front........IF I open up some air exhaust holes in the bottom should I be OK.
Thanks for any responses.