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Don,

I am interested in the size, shape and location of the cooling hole that
don
recommended.  I'd like to do my hole upfront before I paint my 320.
Scott ,When I thought I was having cooling problems(I wasn't,it
as a sensor to close to the exhaust tube)Don suggested the same thing. It
is essentially a reverse NACA scoop just like your air inlets.They are
placed directly between the 2 cylinders on each side which place them about
in a horizontal position just outside of the air inlet bulge . When
standing next to the plane they are just barely visible. Fred N9BF (Don't
fly like my brother)

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