Pretty damn bad ass! If they fully built this to handle well they will definitely have a killer setup. The weight balance would be pretty good one would think.
Those Duratec motors are not bad at all. I believe the Red Bull GRC Ford cars use a Duratec motor - obviously extremely worked over, but a Duratec none-the-less. And they are pushing like ~600 HP.
Maybe I need one of their cylinder heads lol. Had to replace mine at 135k. The car does live a lot of miles above 3000 rpm going down the interstate though. Still sucks.
Pretty neat swap, wonder why they left it at only 300hp. If I went through all that work I would probably shoot for a little more. I love the racepak dash, those things are sick.