Looks cool but I see one MAJOR problem with it, and that's sever heat soaking causing massive efficiency loss. With that thing being located practically right on top of the engine block and contained between the heads, it is getting massive doses of heat a normal M-112 would not recieve, and they're quite well known for heat soaking issues themselves. While an intercooler and modified bypass valve would help, it's still not going to be as efficient as a normal M-112 mounted above the lower intake/valley.
Like I said, looks cool, but I wouldn't have one for a serrious performer.