Dana 60 strength?

Wow an 850 horsepower Street strip car that sounds extremely impressive! I would say my strip car is about 425 horsepower. It's not the strip part that I question, it's the street part with 850 horsepower? I mean really high 8 second car on the street that's going to be a lot of fun or will it?
Wow! Some nice numbers! I was looking to do the street/strip thing with about 850hp and 315 drag raidals, some are saying i need a 9".