I really want to get in to the 10's. I was told the power limit for an 8 3/4 is about 600hp. That's probably where I'll end up for power if not a little more to get it as fast as I'm looking for. I've already rebuilt the center section and redid the brakes. I'm hoping I can sell the 8 3/4 and put that towards the Dana instead of spending more on a rear that will be at it's limit for reliability. Someone on here had a high 10 sec. car that twisted up the housing. I think he went to a Moser housing.