If you are trying to remove the crank bolt. Put the tranny in 6 gear, with the E-brake on. (might have to have someone inside the car to push on the brakes too) This will stop the crank from turning. Now get your biggest breaker bar and socket on that bolt. I've used a pipe over the breaker bar at times for extra torque.
Next question. Once you get the bolt out. I don't know if the pulley to crank fit is a straight or a tapered fit. If it's a tapered fit. You might have to use a torch to heat up the pulley remains to remove it. A lot of times. The pulley will move farther on the crank as it gets hot. watch out for burrs on the crank. If you get any. you will have to file them down, and finish them off with a honing stone with oil on it.