Nothing.
Truck is a bit sluggish with the 5.0, however it rides like a luxury car.
4 wheel ABS brake pedal feels mushy.
Speed sensitive power steering can be a bit weird when de-accelerating on a curved off ramp, got to be used to it.
Extremely quiet ride, makes my '93 F150 seem like a cargo train.
You have the 230hp vortec 305 right. it should'nt feel sluggish.
News Flash! GM's 305 have always been know for being gutless.