Some people may completly hare me for saying this (ED), but sorting out the fuel injection, maybe mechanical fuel injection may be an option to consider, I have this on my RS Turbo and it was very easy to set up and get running, it works on the negative pressure caused by the engine sucking a flap open which then puts fuel into the engine. The more pressure, the more the flap opens, the more fuel which is added to the engine. An electronic fuel injection system would be better, as it can be mapped and if you can get hold of a figaro it would be best suited for this purpose.
Just think that if it's something you want to try it would probably be a cheaper option and an easier option to install and set up. If you coud get a turbo manifold fitted to the MA engine that is. This is only an idea, i'm so expecting people to say MFi is crap lol.