So, I don't want to take too much mystery out of the engine combination but you'll see some pictures from here on. Note that the engine installed is not the final engine. Even though it is an aluminium Hemi, its not the final one. It will be an aluminium Hemi but not this block (it'll be a KB block instead of the world block shown.

So, it will be an injected, under-the-unaltered-standard-hood -Supercharged, twin-intercooled, aluminium Hemi, 525 cu.in. This is the power curve I am shooting for: