You also have the gyroscopic precession effect of the propeller - that is also trying to yaw the airplane to the left. That 12 ft long, 4 bladed prop in something like a '51 is quite a powerful gyroscope.
That's why the nose wants to yaw further to the left as you raise the tail - the force is being applied at the 12 o' clock - but it is felt 90 degrees in the direction of rotation - so at the 3 o'clock position (from the pilots viewpoint).
Airplanes like Spit 14, have the prop / engine turning in the opposite direction, so the forces (except for torque, which is trying to go opposite the direction of rotation) are trying to yaw it to the right.
