i actally re-made the riser and plenium, i replaced it with a 90 degree elbow and made the plenium to suit, i did this so the turbo spout points to the plenum, and so it fits under the bonnet no worries, there was one problem though- because it was bolted to the hotbox i blew a few gaskets that sit between the riser and the hotbox, maybe a copper gasket would be better to be used, this came off a Sunny A14 engine i'm pretty sure.

It worked well as a suckthrough set-up, with it all fixed up, didn't run it for long though, still have it all sitting in the shed in peices.