Lee, my experience with Grand Rapids leads me to advise you to simply call Grand Rapids and buy the most current version of their monitering system. Each system can be modified to meet one's individual needs and flight parameters. If you can even find one on Ebay, you will be chancing it that the EGT, CHT, Manifold pressure.....the list goes on, probes will be the ones you need and the software will accomodate your needs.
Just thinking out loud.................. Dana Overall 1999 & 2000 National KR Gathering host Richmond, KY i39 RV-7 slider, Imron black, "Black Magic" Finish kit 13B Rotary. Hangar flying my Dynon. http://rvflying.tripod.com http://rvflying.tripod.com/blackrudder.jpg do not archive
