340 Exhaust Manifold Bolt

So I've got 68-70 340 manifolds on 3 Darts. The four matched studs go in the far ends, both sides, but you are missing important hardware. There are long big tubes that need a long bolt with a fat shaft and a bolt head, they go down the long tube and are wide enough to catch the manifold mating surface at the bottom of the tube...wow this is hard to explain... I'll take some pictures of the installed manifolds and the odd bolt you are missing and post again.