Does anyone have more information on using non-Datsun carbs with the GX manifold? The previous poster said HS2 british carbs will work (HS2 is 1.25 inch bore).

Has anyone ever used the H4 or HS4 MG carbs on a Datsun manifold? They have 1.5 inch bores which is very close to the Datsun sidedraft 38mm bore.

Of course, SWM still sells a GX-style intake manifold so it shouldn't be difficult to find all the parts.