Subscibed to this one!!!! I have a feeling it was Bud who was talking about this kinda thing before but not sure he's been on in a while, he's from NZ :bow
The last turbo i fitted was the chinese manifold and turbo t3t4 i rebuilt the turbo with garret internals as it was a garrett copy and had the manifold re skimmed, the end result was good. Those kinugawa turbos are jap but they were not available back then..