Bounce

Hey My LS Enthusiasts, I just bought a 2001 6.0L LS motor (thanks ATX Motorsports) that I'm going to install into my '89 BMW 5 series. I've read the threads on the wagon that was done but I need a little help on what cam, intake and injectors I should use. I don't want it to idle too aggressively but I want to pull as much power out of it as possible without breaking the bank. I have my upgraded valve springs (thanks ATX Motorsports) and I'm wondering if I should change the pistons as well? If I don't have to, I won't but I want at least 750HP out of this motor, and that's before the turbo. Now with the 80mm turbo I'm getting, also from ATX - Thank You - they say I can pull 1000HP out of this thing. Any guidance, suggestions or comments are greatly appreciated.