Turbo guy recommended something similar to a z06 cam and springs, he can spec one and have it ground and sell a spring kit, or we can find a takout and be within a couple % 0f the end HP that it would give for 1/8 the price. If you just want the specs, I might be able to get them, otherwise, he's in the business of selling cams. If he specs it, he will probably grind and sell it to you. He said if you can find a z06 cam and springs, do that. I'm checking at the local dyno shop as well.
He recommends a 60mm single with a t4 sized turbine housing to make it spool fast since you aren't going for more than about 8psi. Should end up at a fuzz under 500 horse to just over depending on tuning. I'm getting pricing and whatnot later when he's not at his dayjob