Help me identify this carbon frame

[bkuhn13]

This older frame was given to me by a friend and neither of us can figure out who the maker was. Anybody have a clue from these pictures? The dropouts appear to be carbon with aluminum inserts. I was leaning towards it being a Giant Cadex but I haven't found one that matches exactly what I have.

Thanks!

[bkuhn13]

I just weighed it - 2.5 lbs. Not bad for an older frame...

[Chopper1103]

From the lug design, it looks like a Calfee Design frame. Pretty high end- usually custom. If it fits, I say enjoy...