sometimes it's not about how much, in a car that's got a gear that's higher (2:73, 3:08, ect), smaller port, valve size, help keep velocities up, which helps throttle response, remember everything has to work together, on a setup like this a smaller carb is also better, on a car setup like this for street use how often does it see much over 4000 r.p.m.?, all this improves low end torque, driveability, you need to decide what you want first, my big blue barge runs 11.6's w/ a 3.73 rear, ovals, and a conservative cam, did I mention my 60' time are always under 1.55 w/ a best of 1.48
Sam