other bolt on or easier performance and performance perception things are -
the pedal mods for faster throttle response
lower weight wheels - steelies can have a lower weight per wheel, and lower weight for an equal diameter is a better angular momentum .
pump 89 octane. the engine can take 87 but will dial back the performance according to the owners manual.
smaller cabs have less creature comforts and those fun things are weight.
2wd has a better percentage of driveline power delivery to the drive wheel than 4x4 spinning the front axle/diff .
Windows up and tailgate up is more aero efficient than down. the tailgate thing seems contrary, but a lot of aero design has been put into it.
if you are going to go hooning for a quick burst , less gas is more. a full tank is a boat anchor you are carrying about.
this is all pretty much shade tree thinking about the cheap ways to get a touch more oomph.