Its running well now Phil, Its got a wideband lambda kit fitted and a datalogger so I can set the carbs up properly. Ive got no idea what kind of power its putting out, its "enough"!!
Its not too bad on fuel either, went for a run down the motorway and its giving 25-30mpg if your carefull, about the same as I was getting with the 1256!!!
Apart from the motorway runs, it gets thrashed everywhere!!!