I finally received my Grand Rapids Technologies EIS (engine information system). I've been waiting on this so I can build my panel and then break-in my engine. They were in short supply for quite awhile I think due to supply chain issues. This instrument will give me tachometer, CHT, EGT, engine hours, flight timer, altitude, vertical speed and a few other things. The other instruments I included on my panel are an analog airspeed indicator and altimeter and a slip indicator.