I maybe mistaken, but I believe the dual oil returns for the turbo started with the STORM blocks. Both my 1998 12 valve and the 2000 Mexican block I have as a spare have dual oil returns.The 24 valves as well as the later 12 valves have two turbo oil drain locations options; front and rear. Ours is positioned in the rear. Take a look at the attached photo that shows both oil drains and the rear engine mount. I assure you our engine is positioned correctly and that the transmission has been moved back the 2" you speak of. You can see the re drilled holes in the frame for the transmission cross member in my video.
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