Cast Exhaust Manifolds (Approximately)

[Orange Crate]

After 57 years my 2.5" stock exhaust manifold cracked. Wow what a shame, these things really woke up my 406 but looked stock. Oh well on to the fix. I ordered a set of 2.5" cast units from Summit. So here are the pics comparing them to what is left of the stock pieces. I have a saying that things made in the Pacific Rim are "approximations" of the real thing. Close but.....these new ones are not going on my truck. First pic is...well yea that happened. Second pic is the "new" high performance? Third pic is the old single exhaust port. One of these things is not like the other.....On this engine I need every square millimeter of flow (No I am not going with headers). Now I am looking at the TruRam set. Anybody have a set of those? I have AC so I think these will interfere with the new Alan Grove brackets I just put on.