Depends on the megasquirt, you need to make sure you get megasquirt with the Map sensor on it (MPX4250 i think) to handle the boost. Also its not normally just the case of plugging Megasquirt in and off you go, its quite in depth setting it all up properly.
You will also need a head gasket spacer or double stack yr head gaskets to lower compression, all related pipework, pulleys and belts, intercooler, bigger injectors, possibly a bigger fuel pump and will need to modify yr sump for an oil feed for the charger.
Make sure you take plenty of pics an post yr progress
