Best Clutch For a 420A?

I'm sure there's info somewhere on AF about clutches for the non-turbo eclipse...but I can't find it. I have a built 420A and plans to install a turbo next month. I need a clutch that can hold atleast 450ft lbs., but I can't find anything that'll fit the 420A. I need it to be semi streetable, too. lol Is that even possible? Thanks

I believe spec sells a clutch like that

I found the spec clutch your'e talking about, and I also found one by clutch masters. Both will do the job for about $800... I just might find the limits of a stock clutch! lol