Danger Zone

Hey guys just looking for possibly causes and or solutions. i have a 1995 toyota levin automatic. about two weeks ago i notice when i press the gas pedal it has a gap before it start reving so i pull down the throttle body and cleaned it with cabarator cleaner and change the sparks plugs the gap is no longer there but i notice the enging is racing when i press gas i can ere the engine crying out but the car not goin more than about 38-40 km/h.