There is lots of cars making 900 whp but i think at that level the rods and pistons can be a ticking time bomb mainly the powdered metal rods. I would leave it at 800 fhp and call it good. I looked into it myself but want something with long term worry free reliabilty so chose to start with a BGE/Hellcat block, 6.4 truck crank and H beams/forged pistons