Torker II MPFI Build

An idea for best low-end torque and mileage, but still have high power is to use small MPFI injectors at each cylinder (for normal driving), with additional throttle body injectors that come on when you step on it. The later could be a factory-type TBI (GM Rochester or Holley Pro-jection) or a TBI that uses MPFI injectors (FAST, Motorvation, ...). I imagine the manufacturers don't do that because of extra cost. Most drag racers don't care about low rpm performance since they rev the engine with the brake on to launch. However, for a daily driver with performance ability it might make sense, or for rock crawlers. Of course, it would need a custom controller like Megasquirt.