Technical Flathead intakes

That single intake is a 33 - notice the generator mount (uses the later 'fork' mount style generator, not the 32 post mount). The other manifold is a bit later - maybe 35/36, but I'm not an expert on stock manifolds by any means. Not many folks want to run the Detroit Lubricator style carb - unless they are interested in restorations . . . just the way it is!

 

Ah ok, so later intakes have a stud sticking out of the manifold?