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| Joined: | 07-16-2014 |
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As far as I know, there was only ever one airbox setup (the AC muffler type) for Dellorto carb JHs and GTs. The same set up was also used for all Stromberg carb JHs aside from those with T75 engines (very late JH5s and most GTs) which used the Lotus Eclat airbox setup. Later UK-spec GTs were also fitted with the T75 engine, presumably because that was all that Jensen had in inventory at the time. I suspect the Eclat setup was used on the T75 engines to try to compensate for the negative impact on power and torque of all the emissions measures.
The head on my GT is standard 912 HC spec - Mike has been trying to tempt me with the CNC'd head but I have managed to resist (thus far). The cams are standard 912 HC too - 107 in 104 ex I think.
Best wishes,
Nigel