Need a lot of Head/GEAR/RPM/stall for a Vic to show an improvement over an RPM or AG, especially in a heavier car and almost never in an 1/8th mile, motors just not in the sweet spot (above the flash and torque peak RPM)for enough of the time for it to pay off....if you don't have enough cam and head the Vic will never pay off becaue the extra airflow potential it has can never get past the valve.

Does a Victor have more HP potential?....you bet....but only when you got enough motor/rpm to need it. The M1 or old Strip Dominator makes better mid range than a Victor but not as good at the very top of the scale.

With an auto in a 3100 or so pound street car the RPM or Ag is tough to beat, as you get lighter or deeper geared the choice really depends on how much time the motor is over the torque peak.