I remember seeing a YouTube vid of Ben's cars a while back. It was something from a European TV show where they showed the car after some more work had been done to it. They fabricated SLR style intercoolers (seen on the vid) and Ben made mention that it made 600 or so HP. He didn't mention whether it was crank or wheel though.

I'll try to dig around to find the find and post a link to it later tonight. Can't access it [YouTube] from work.