Great,
I had one too, it was running Ebay manifold, my mate old sr20 turbo, evo VI front mount all done in my back yard and the bloody thing was flying though it was lag as fk lol, boost wont' kicks in until 4000rpm.
I kept up with an Evo VII with just 6psi untuned hahaha, 140kw sounds about right with that set up.
Oh i think you've got a rare Tom's adjustable spoiler.
Try Auststarletclub yet?