How much horsepower will a mopar 8 3/4 rear handle? Does my 440 stroker build require a Dana 60?

im at the drag strip just about every weekend and a lot of cars making any kind of power ford dodge or chevy have the ford 9 in rear end under them as im told it will hold up to 7 or 8 hundred horsepower and just as much torque as for the dana 60 its a good rear end but its heavy