We used a throttle body from a Volvo 960 since it has a real TPS sensor unlike the stock M103 which only has a WOT switch.
We then coupled that with the wiring etc. from a Volvo B230E.
Next was converting the kjet injector seats to use bosch style injectors which turned out to be pretty easy!
- Get a fuelrail from a M104
- Grind down the intake a bit