Matt,

<<The ONLY other change is that I made some really cheesy air intake blocks to
  try and get the CHT's up.  They are a flat frontal area in a shape at the
  bottom of the round hole.  It blocks about 20% of the opening.
 
  Any thoughts?>>

How large is your exit?  Reducing the exit area should help choke down the flow and bring CHTs up.

Chris

 

Chris Zavatson

N91CZ

360std