Build me a 800hp NA 512 b block using pump gas

Hey guys, well this has bees eating at me for some time so I have decided to ask for help. I am looking to build a 800hp NA 512 out of a stock 400 block. Ok, I know about the limitations of a stock block but lots of people are building up to 700-775 with a stock block with BCR aluminum mains and a girdle. My goal is 800hp and very low 9's if not 9 flat on pump gas. Like a drag week engine. It will see limited drag strip use once my goal is reached. Not something that will be raced every weekend.This is a personal thing for me. The car is set up for this as it has been built for SG - SS or anything in between. Back halfed, 16x33's, full cage etc.etc. This goal of mine has all been discussed with the chassis builder so the car is right and can handle the horsepower.
You guys have some really impressive engine builders here. MRL, AndyF, and IQ52 just to name a few. So I'm hoping for some input. I would like to stick with Edelbrock MW Victors or Indy heads is possible. Not really wanting to go Brodix but if need be ok. Please tell me your thought and how you would build one. I've seen so many threads I'm confused and have a headache. There is nothing at 800hp. with a b block that I have found. BTY I have read Andy's book. Thank you in advance.