I think you need a cam with about 220 degrees duration at .050"-lift and a 115-degree lobe separation. Forget about all this lift; you can move more air in there with a higher boost setting on your waste-gate,. And, yes, an alcohol/water injection system will be money well-spent.
That is really good advice on the 2.76 rear gears and doing this with torque rather than high-rpm horsepower, will save money on engine-longevity, and valve train pieces. Redline it at 5,500 and get a wideband O2 sensor, whatever you do. That will be your best friend! Good luck!!!:cheers: