8 3/4 + Hp = ?

I have a 600+ hp SB stroker thats going in my dart and wondering how much my 8.75 A body housing and case can take before I have to upgrade to a Dana 60? Right now I have 4:10 gears in a 742 case sure grip.

I dont have a brace on the housing either... would that solve my main issue?

You might be pushing your luck, is it an auto or 4 speed and are you going to be running sticky tires.

Terry