Just pull the side cowls and look to see where the probe is installed.
Jim

"Dean" wrote in message
oups.com...
Thanks for the information. I'm already leaning on the ground quite
aggesively as i've been told the O-540 plugs foul really easily with
the very rich mixture the Aztec is set-up for full rich.

One last question (sorry for the ignorance) but how do I know that that
particular EGT is the highest reading. i.e. is it taken off an
individual exhaust outlet or further down the exhaust (i.e.
common/averaged reading). Just wondering what the case is if the EGT is
out, and you lean to an incorrect EGT figure?

Dean