I'm fixing to embark on my first build. But I have no idea of where to start. I know that it was making 460hp and 440tq before the need of the build and my goal is 600. I know the lower end is bad on the factory block so I was thinking about getting a new short block. Where is the best place to buy from? I was thinking about the MMR aluminator killer. Pros cons? What else will I need to make the 600hp mark? I know that my car has been pullied, C&L CAI, single blade throttle body, bigger plenum, exhaust (no headers), diablo tuned, H&R lowering springs, camber caster plates, and heat exchanger. Thanks in advance for the help.