After: Unfortunately this evening I pulled the Carburettors out and rotated them 180 degrees don't get me wrong they are set up just as they are shown on the instruction manuel....I think left hand drives must have the throttle cable coming out the right hand side of the engine. The carburettors are now set up better but I will have to get a new linkage pivot arm made. They are running beautifully and sunked them (pleural of synced) only problem I cant get them to idle below 900 rpm Never tuned a carb before.......taking them out on the road tonight .....they make a strange noise but gosh responsive .......got to be careful flooring it the front of the bus pops up and we are away. Parking in the garage smell of hot engine with no petrol! Rev I think I already have a buyer for the second pair though they may not want them if they find they will need to machine the pivot arm and the manifolds are awful to put on......bet it would be easier with the engine out though.