Replacement Fuel Flow Gauge

[Ron Moore]

N5KX has a Shadin fuel flow as well, and individual digital engine gauges. But it also has a digital tach, brand unknown until I go to the airport. When the props are synched, the front and rear RPM's are exactly the same on the digital tach, even though the standard tach shows them a couple hundred RPM's apart. I have attached a picture, but the digital tach is behind the right yoke and not visible.....