The Toyota/ Lexus V8 is extremely popular in Australia for powering Cobra replicas and I'm presently building two Cobras in the UK powered by Lexus V8's.
The computer is really quite simple to wire up once you have done the research on what the pin outs are on the ECU. You can even buy a kit with a loom already prepared to spark up the Lexus V8 from Ozvenom on this site.
Theres a vast amount of info available from guys who have transplanted the Lexus V8 into everything from Cobras to Pick-ups, to BMW 3 series, 4 wheel drives, boats and even into self built aeroplanes on
www.lextreme.com.
Spend a few hours having a search on the lextreme site and all will become clear.
It took me 18 months to get the BMW V8 engine and box working properly in my first Cobra, and about 6 hours in the first Lexus powered Cobra. Off the top of my head you need 4 fuses, 3 relays and 7 or eight wires connecting out of the ECU.....
Welcome to the madhouse,
Tony