833 Strength

a833 is plenty strong enough just go through the whole box and upgrade everything first and be done with it.
i ahve a 12.1 comp 680hp 730tq 505 BB 68 charger with a 23 spline built box it is a street car and never had a problem, has alot more available HP but i detuned it as i dont want it to be too much of a pig to drive.