All these hints for the 360 are worth considering.They all help contribute
to building a class airplane if you can stand the weight.

I second the left front prop governor and remote oil filter.  O360 f1A6 is
also counterweighted.  That with an MT prop and balanced to within 1/2 gram
provided .025 inches per second acceleration.  The technician said it
doesn't get any better.  Weighs a little more but with short mounts that was
a blessing.  Also this is the smoothest 4 banger around.  It is as good as
the 6 cyl in the 182s for smooth operation.  Counterweighted is good.

Bob Smiley