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Rob,

You wrote <In my TIGER I did alot of work on this.. see http://rob.com/cht/>

Thanks for the info and the data at your web site.  I see that your Tiger cyl
#2 had the same "symptoms" even though using a carburetor (assumed because of
"carb heat box" not "alternate air").  With respect to EGT performance, I
would say the basic cause is the same -- a leaner air/fuel ratio than other
cylinders.  In an injected engine, it seems there are many ways to get that
combination, some of which are to have an imbalance in the fuel delivery
system, air induction system or, as we found, in the injector environment
itself (fuel delivery?).  

I should have said that Tom's injected 360 has the throttle body mounted
below/rear of the oil pan with a hi-pressure slow-speed ram air plenum and my
320 has the oil pan mod so that the throttle body is mounted on the forward
face of the oil pan -- straight hi-speed ram air, no bends or filter before
the throttle body.  The differences in these induction systems led us away
from suspecting an imbalance there, although one may exist.

As you found that manipulating the airflow around cylinder #2 can affect its'
CHT, we also believe some baffling changes coud be effective once the
cylinders are more evenly producing power.  

Scott Krueger

PS The paragraph stating 120 degrees lean of peak is in error, it should be
120 degrees RICH of peak.

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