what kind of opinion were you looking for? I think if you want to spend that much money do it. They have a good rep so I am sure they would do a good job. I wouldn't spend that much on that engine and have no where to drive it, what a waste!
I want to know what the hell are they doing to the car for almost $30k!!! last I spoke to them the guy said adding a supercharger would cost around $8k installed. How are they able to get 500 out of this engine? And if they can why the hell didn't GM push a bit harder to give us more HP?