i know this sounds silly but my brother aske dme an i was like i realy dont know

under the accelorater peddle there is a wedge of rubber stopping you from puhing the peddle to the floor

what wouldhappen if you removed it :S

 Nothing other than the pedal travelling further.

 so your car wouldnt rev more

Doesnt make a difference. I drove about with out it for a while when my interior was leaking and i had nothing in the car appart from seats and the dash.

 I would'nt rev more because when the pedal is on the stop the throttle is as open as it can be.