Big Update!
When theis car was built back in the day it had the VSAM Pro engine management fitted to it which in a nut shell is an ECU that controls the timing and also controls and extra (Digifant style) injector which is mounted in the metering head. THis allows you to fine tune the K-Jet system for engines in a higher state of tune.
THis is all good stuff except VSAM Pro is very much an antique in the aftermarket ECU world and as it pretty much pre dates the internet information is scant to say the least. However I after much searching I found a chap in Oz who used to libve here and ran it on a KR powered Corrado. THis guy is a legend, he's managed to find a copy of the software for mapping it and is sorting me with a wiring diagram to make up the cable. I just need to pick up a cheap old lappy that has a serial port and Windows 95 or 98 and I'm away!
Nick