Yeah TSP quoted around 650 @ the crank from this motor, and I'm sure it makes that much. One of the main reasons I'm losing quite a bit of power is due to having cat's, I kept them to keep things a little more mellow so I wouldn't be bothered by cops.
Also when I talked to my tuner he was telling me TSP usually builds very high compression NA (not good for pump gas builds) motors unless you tell them otherwise, which need higher octane to pull more timing for more power. Since I live in California we only have 91 octane vs other states that have 93. Once we get more E85 stations around here, I will switch to that 101+ octane. Tuner said I can make up to 30+ rwhp with it.
I didn't really tell TSP specifics when I asked to build my motor. I just said build me a LS3 and they built a quote sheet and I agreed to it lol.
What are the specs for your motor man?