Posted for "rtitsworth" <rtitsworth@mindspring.com>:

 Bryan,
 Just curious, what happens to fuel flow rates during the No Boost / Low
 Boost transition?  (I'm guessing they go up a small amount - thus a slightly
 richer [or less lean] mixture, ceretis-paribus).
 
 And what happens to CHTs? (I'm guessing they stay nearly the same or go down
 a bit if you're ROP).
 
 High EGT's do not necessarily relate to high CHTs - and can sometimes
 actually be inversely related.  Richer mixtures, can delay combustion
 timing, which can expose the EGT probe to more of the combustion heat.
 There is no max EGT (only a max TIT).
 
 You might want to fwd your message/experience to Walter Atkinson
 (walter@AdvancedPilot.com) for a more informed opinion/prognosis.  I'm only
 good for theory/speculation.
 
 Rick
 

"""
  When the fuel pump is turned on to LOW I get a rise in EGT of about 30
  degrees.  Now I would expect that nothing would change unless there is a
  leaning of the mixture. What is happening by turning on the boost pump
  to lean the fuel/air mixture ratio?
"""