Hi, I converted mine in stages over a period of a few years. First I went to 3D mapping but did this with a full loom and ECU that could go to full injection. I subsequently went to full injection. The move to 3D was the most dramatic in terms of change, no real gain in power but used a lot less fuel. Full injection is more driveable. I think you could do the first stage for less than £2k, you need a loom, ECU and a mapping session plus you have to deal with the distributor. For full injection you add the cost of the injectors and you need to make changes to the tank/pump and another mapping session. The carbs would sell quickly but have a look at the Northampton Motorsport website they now convert them to run fuel injection. Not sure about cost difference v buying new TB's but you keep the look of having carbs. If you plan on going to the Alps make sure you add the pressure sensor, it's not expensive. Without it my car would not run properly once I got higher up and it certainly wouldn't idle without my foot on the throttle. alan