I have seen this topic discussed on the Jag Lovers E-Type Forum, and as I remember the manifold is angled slightly differently and will cause the carbs to hit the bonnet or something (I think). You can check the archives if you join. It may take a few days to get access. address is: www.jag-lovers.org/ go to forums, E-Type. If no topic is running, then access the archives and type in a searby Rod Melendez - Jaguar E-Type Forum
My E-type is missing most of its tools. Is the proper roll a Series I roll or the smaller Series II roll...or something unique to that year?by Rod Melendez - Jaguar E-Type Forum
My 68 OTS does not have head rests.by Rod Melendez - Jaguar E-Type Forum