I have some of the Big "Ladies," the B-body Olds. Before they repopping the factory S-exhaust manifolds for the drivers' side I made my own. I just told people that asked about it that it was "factory experimental."
I get a set of Toro exhaust manifolds, use the passenger as it is. Drivers' side is cut and rotated, "Nickle" Ni-rod welded. You do have to grind the manifold a bit (can see in pic) and a hair of the corner of the steering box, or put a 1/8" washer between frame and motor mount. It makes it kind of a B-body XW manifold, about as good of a flow as one can have without custom headers. Also, I have a pic of the transmission dual exhaust lever for a B-body. I have made a couple but I found this "factory" one on a 1969 "Hearse" that did NOT have factory dual exhaust, go figure.
I have one more car a 66 Dynamic convertible that I am going to do, if I live long enough and my Kids, (30 & 26, Teacher & Lawyer) stop draining me.
I hope the pictures work. Later, Ken
