I have a couple of extra JPI EDM800's that I have taken in on trade. These make for a very easy upgrade from a 700 to 800, and you get fuel flow, RPM, MP, OAT, % Power and more. These are the same probes and harnesses used for the EDM830 and 900 (mostly), so you are all set for future upgrades too. Contact me with a list of what you already have installed, and I'll put together a package for your upgrade. Don (supercub180@gmail.com)