Loom wiring

I've purchased a second hand efi set up, which includes and ecu and loom originally made by scoff at efi parts. Can anyone help be with the wiring:http://s1113.photobucket.com/user/ch...pg1-2.jpg.html

I know the orange and black wire are to the tachometer
Think the black wire must be an earth
And the two red wires live feeds (not sure where to take these from)

http://www.efi-parts.co.uk/index.php?show_aux_page=9

have you had a look at these also what ecu is it.

It's a Adaptronic 420D
Yeah I have thanks, will have to study it further

same ecu as i have. here is the diagram for the 420d