I have been looking at replacement instruments for the dashboard. The Tachometer is going from mechanical to electric. The new speedometer I have been researching are electronic and programmable. Which makes it a lot easier to calibrate for different tire sizes. I have pretty much settled on the Autometer Cobalt series.
The Cosy engine sounds a lot like the Jag engine.
Left channel is the Ford-Cosworth and Right Channel is the original Jaguar engine.