On their thread on the corvette forum the owner posted this yesterday:
Was doing some test hits and checking everything out yesterday on the new tire and after a few back to back pulls with just water in the system no ice the highest it saw was 135. I haven't iced down the 10 gallon system we have in the car yet to see how much it affects the temps but once I do I will report back.
I also saw a post about pre-TB and post SC boost numbers but I can't find them anywhere. I'm watching the build on instagram, facebook, here, corvette forum and I bug all of them via chat all the time too

The dyno was at 35psi from what I read but I'll let the guys answer all your questions, they know better than I do, I'm just an HP stalker
EDIT - owner also posted this
A
s far as boost the car is on a 2.35 upper pulley and stock diameter lower. I would suspect it would be about 10 lbs on my heads and can and header set up if it was just blower ( would be 15-16 on a stock head cam car). Turbo is putting out 23/24 lbs and it's making about 36 manifold pressure post rotor
Read more: http://www.corvetteforum.com/forums...acing-s-compound-boost-zr1.html#ixzz3oSp5p3i9