each of the two styles of throttle bodies should support a different kind of torque curve, on a 350 say, the smaller one should create better torque down low, but restrict higher hp, and vice versa on the larger tb, so, my question is, what rpm is each one suited for? like a cam or intake the tb should be working very well at a certain range, this should be considered like cam selection or anything else but i dont think ive ever seen it mentioned in this light.

anyone good with math know where the two tb's help to create power?