Posted for William Miller <cwfmd@yahoo.com>:

 Q1. What is the best source for the #5 baffle mod?
 Q2, Are there any published reports or flight tests?
 Q3. I saw Fred Moreno mentioned a 5 document .pdf on plenums and pressures
but cannot find it on the list or archives.
[It's at the bottom of the "Tips & Tricks" page on the LML website  <M>  ]
 Q4. Is there a similar report or flight test on exhaust tunnel extensions.
 Q5. Can that big fat landing light disrupt cooling airflow on the right side:
CHT #5 and #1 hot, and worse at high altitude?
 
 Update:
  It was great to see everyone at OSH. I learned that a senior experienced L4P
pilot switches tanks every five minutes during climbout. This caused me to
think of DYNAMIC pressures across the fuel vent lines. I removed one, then the
other check valve, in the wingtips and discovered a restricted flow
 by applying pulmonary
 pressure. Since I could not produce a pressure vs flow rate graph at OSH I
took a poll of assembled experts and a few agreed with me that the restriction
could
 not keep up with 40gal/hr  ~= 42 cc/sec. I bought some larger tubing at the
fly mart and  installed it on the flight line at OSH. Security is very good. I
got to talk to several patrols to make sure I was working on my own airplane:)
  Based on the good advice from the same guy who switches tanks in climb, I
took a suggested detour to 4R4 Fairhope, Alabama to visit TCM customer
service. They found a timing advance of 2 degrees and a low reading fuel flow
on my gage by about 15%. These adjustments have solved most cooling issues in
climb and low altitude, but my #5 is still running very(30-40 deg) hotter at
65-75% ROP and 55-65% LOP and high altitude > FL220. I plan to remove the
landing light from in front of #5, then install the mod to the baffle if
needed. Then check upper pressures and outflow.