OK, update , having spoken to Smaky , he has been trying to tell me the same thing , not registering obviously!
Right; revs still relunctant to drop to good levels except when you blip the throttle, but apart from that took the car for a run and there was a serious missfire, took the plugs out and found a lot of water at no. 1 cyl. cleaned that out and went for a hard run going a lot better no missfire, discovered there was a metallic sound from 2000 revs upward , suggests to me timing maybe out. The plugs while out look very white , Smaky suggests lambda may be faulty.Have not tried his test run yet , I will have to check the timing to rule out that noise .Still coming to a standstill, idle relunctant to drop unless you blip the throttle , still think the body will have to change.