Does anywhere sell new intake manifolds for the 258? I'm talking brick and mortar stores. Anybody have one they're trying to sell?
A while back I got an exhaust manifold at Advance. They very well may have the intake, also.
Clifford sells a 4 bbl performance one. I ran the split level (dual plane) Offenhauser before. Make sure they have the PS bracket hole (unless you don't have PS) There is also one to put a carb on the 4.0L head.