I also have been looking for a way to fit MK10 triple carb and manifold to my 1970 Etype. Last year I sold a series 3 Etype to a person in Sydney Australia and I told him that I also had a series two with twin carbs and that I had the early triple manifold for a MK 10, was he interested in the manifold. He said to me that he knows of some fellows in his club who have the drawings of a offset spby Alec Rex - Jaguar E-Type Forum