He's running stock 1jz-gte toyota computer after upgrading his turbo to a T-78! The fueling mods he must have are fuel pump, and (probably) injectors. He seems to control the whole lot with the (Old style) Apexi-AFC and fuel pressure regulator.
I guess you don't NEED aftermarket management to run huge turbos, but he's probably not making a whole lot of power he could have (especially with the nitrous).