How much power is too much power for bags?

[IvelDesigns]

I'm still in the dream stage of my project. I've got a million ideas on what I plan to do, and then a few that I am 50/50 on.

One of those ideas is a 4/6 drop using coils and spindles. (69 lwb with trailing arms). If i don't have to c-notch, i'd rather not. And i think that bagging it will be a)more than i want to spend and b)lower than i need/want to go. However, it's an option.

But, one thing that I will be doing is having a 375-425hp motor built with about the same amount of torque. My question is, with your average bag setup, what is the most amount of HP you would realistically want to run? Keep in mind that this truck will be a DD (when there is no snow) and i enjoy my kidneys just as they are. I also want good traction when i take off for the occasional trip down the 1/4 mile.