What it's worth (WIW) '68 Barracuda fastback

Are the heads X heads casted near the spark plugs.

Here's a 340 exhaust manifold sets:





Here's a 318 manifold sets that looks close:


I see what you mean. The right side manifold difference is glaringly obvious. Maybe they are 360 manifolds on the car? I'll have to look at that closer. You guys are awesome - ask a question and you get an instant answer! Thanks!