Cinnamon 75 Duster \
I ended up replacing the exhaust manifold. The original had some deep pits in it, so had gotten one from a yard. After breaking several bolts/studs and trying to drill and tap, I decided not to use it either. Got a new one from SilverSeal. Not bad, but yes it is Chinese. Did a bit of grinding to the casting ridges (oops, where did the word 'China' go? LOL) The top left ear was too big and interfered with the water neck, also the exhaust pipe studs were only 3/8, so upsized them to 7/16 as original. I replaced all the manifold studs. installed with brass nuts. The mani came with new triangle washers, but not as thick as original, so I cleaned up and used old ones, they did include the correct nuts for the 2 end studs. Painted with VHT 'Flame Proof'