Here's the specs:
Our Cessna 140A is equipped with the factory installed alternate engine, a
Continental C-90-14F engine producing a maximum 90 horsepower at 2475 RPM.
The maximum gross weight is 1500 lbs.  Maximum speed is 140MPH, normal
cruise speed at 5,000 ft is 108 MPH using the normal cruise RPM of 2300
burning 5.5 gph.  The aircraft is certified in the Utility Category.  
Chandelles, Lazy Eights, and Spins are authorized.