The cruze engines are "direct" for the later ecotec aveo.

I would look into a VR6 swap, with a 6 speed. There are support companies that offer practically stand alone wiring systems to put these engine into anything. I have a few friends reliably making over 500 hp after turbos.

That was the route I was going to go if i still had mine. I have been through a dozen cars since it has been gone. Still miss it.