All, I have a set of 36mm intake manifolds that have the same angle as the 850 Lemans style but are quite a bit thicker.
The lemans are 44mm diameter (36mm internal) and these are 52mm diameter (36mm internal)
In current guise I can't use them as the intake rubbers don't fit...will probably have fo machine them down
Photos of a 850 lemans intake and the the thicker ones below,
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