Trueno Digital dash kph to mph

[banpei]

You can't change the digital dash from kph to mph out of the box:
http://www.aeu86.org/forum/Thread-JDM-Di...h-question
The digital gauge cluster doesn't support a multi scale speedo like the Celica Supra MA61 did with a simple push button to change it. You would be able to change the gear on the speedo cable with a factor 0.62, but the speedo will still read km/h.
The fluerecent tube display does have the mph reading though, so with a little bit of fiddling in the electronics you would be able to put that right:
http://club4ag.com/forums/viewtopic.php?t=15561

About the analogue dials: you can swap it for a UK gauge cluster. It already has everything in mph and all the connections should be correct too.