RFP for the Engine Build for the Missile

You could always go with a gen 3 Hemi with a factory style fuel injection throw a super charger on it (or twin turbos if you prefer) and make closer to a 800+ HP (Ive heard there is now a kit to make 1000hp but I haven't checked). If displacement is you thing why not get the 6.4l or the 6.1/5.7 Hemi. Just a thought.