Track Boss Cleveland block with EFI???

even if the upper section can be turned around, still looks like it will not clear the deck lid

Looking good!

It looks great, but wouldn't work in a Pantera application. Immediately in front of the engine is the bulkhead and the rear window, immediately behind the engine is the deck lid. The Pantera needs a plenum that isn't any longer than a cylinder head (possibly shorter), and a throttle body connection that points sideways.

Clearance with the deck lid (at the rear of the engine) is especially tight; for instance guys who install 48 IDA Webers have to "notch" the deck lid.

On top of that, many owners are sensitive about the height of the induction; to appeal to the most owners possible it should fit beneath the engine screen. This induction "looks" too high to me, although I couldn't be certain without measurements. If so, the runners would have to be shortened, plenum height reduced, etc. ... whatever it would take to get it below the engine screen.

3D printers are bad ass! If you were to turn it around would it stick out of the decklid?

This one should fit at the front. At the back is still to be determined. The side throttle body location should work. The upper manifold can be rotated so the TB is left or right.

I have fuel injection intake and plenum it is 11"1/2" from the bottom of the manifold to the top of the plenum with throttle body facing the rear of the engine.

Carl that manifold is shorter than the Trick Flow manifold AND looks shorter than the manifold in the picture posted by Tim. But it still looks too tall for a Pantera. Have you tried it in the Pantera?

Its interesting, may I ask does that manifold use a modified 351W lower?

The Trick Flow will likely stick out above the engine cover by about 2.5 inches. Since I got the car totally disassembled and without an engine cover it's difficult to know. One good thing about the TF manifold is that it has runners of a decent length.

Ya, you could hook a couple turbos to that and go drag racing.

Carl sent another picture.

His manifold is a hybrid. It's composed of a Trick Flow lower and a Holley Plenum. A custom adapter plate was manufactured that mounts to the Trick Flow lower, and is designed for the Holley plenum to in turn mount to it. Clever.

There is no shortage of creative people on this forum. I am curious what those short runners will do to the power curve? The full Trick Flow manifold runner length measures a little over 11 inches. The base only measures about 8 inches.