Posted for "George Braly" <gwbraly@gami.com>:

 Bob,
  
 I just ran the WOT prop load test on an IO-360,  about 2 weeks ago on
 the test stand.  Torque drops anywhere after about 2500 RPM.  That is
 the same on the Lycoming  TIO-540J2BD.   Lycoming did a pretty good job
 on that cam.
 
  This morning, I talked to another prominent engine builder.  He
 confessed that about 10 years ago,  he spend a LOT of money trying to
 design a better cam for the Lycoming engines - - only to discover that
 Lycoming had done a nice job of that, in the first instance.
 
  Regards,  George