are you using the FSM as a guide to you removal?
in case you are not using the FSM the link is:
zerothread?id=311075
You should be using it as a guide or at least have read through it before attempting removal. lots of steps you have to take when removing/installing the head.
The hardest to get bolts are going to be on the bottom, from what I remember i had a hard time pulling my buddies off because the two bottom bolts were such a b**** to locate and then remove. also make sure you have removed the intake manifold -> block support pieces because those will hinder removal too, and once you got em off toss them away you don't need them.