me and geo spoke about this for ages phil, this is what we came up with. the jdm 4efe starlets came with the jdm inlet manifold, yellow injectors (compaired to our green ones), and this ecu which has a rpm limit of (we believe) around 7000rpm. anyone with the jdm mani will agree that sometimes the 6k rev limit isnt enough with the mani fitted. the jdm 4efe's run around 90-99bhp but thats on 105 ron fuel, some also use a distributorless ignition system, so that would be the bit that would need to be modified, you could find one of these ignition systems and try it, but theres no guarantee it would work with your wiring anyway. this was going to be my n/a project before i bought the v, so until someone trys this out we will never know for certain what gains are to be had.