How to get 1500+HP

Since a supercharged (or turbo charged) Gen 2 Hemi is and has been the power plant of choice in so many rigs that meet or exceed this requirement why not have that choice also? Most of the exhibition wheel standers etc... Run a big Hemi on the mild side and have very little maintenance issues. Then there is the Nelson Racing Maximus twin turbo Alien II mirror image setup in the widened Charger you see in the end of FNF7 that makes 2000+ HP The big block would be cheaper but would still have to use an aftermarket block with cross bolted mains since the bearing caps like to walk in the 900 HP range even with a girdle.