Torque Converter Stuck

I had my transmission rebuilt last year and shortly after the old 440 gave out. I pulled my drive line out earlier today and found that the torque converter is somehow stuck to the crank. I have tried making wedges out of 2x4 and driving them between the flex plate and the TC, but i can't tell that it has moved at all. Any ideas on how to get it out without ruining the TC? And yes, the bolts are out of the TC (except for one that I left partially in so it doesn't hit the ground when it breaks free). Any help is appreciated.