Ok, so I talked myself into updating the script to support the following

heading - Mag heading
IAS - Indicated Air Speed
TAS - True Air Speed
GS - Ground Speed
PEGT - Peak EGT
PCHT - Peak CHT
TIT - Turbo Inlet Temperature (for those with Turbos)

Specific info here  http://legacyfg.jconserv.net/viewtopic.php?t=194

Alan