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The puller will help get the head off. They work pretty well. Once the head is all the way to the top of the head studs it will not be able to lift it any farther. You can then attach a engine lift to the puller and use that to get it the rest of the way off if it still needs help. Be careful though if you do because the head can separate pretty suddenly causing damage the junction box or firewall etc...
Another option is to make spacers out of 1/4' nuts by grinding the tips off making them round. They will then be able to sit on top of the four head studs the puller pushes against and have room to recess into the head. Sometimes several need to be stacked on top of each other to get a head all the way off.