Assuming you're referring to an F engine similar to my F155:
First question: after a night's sleep, do you still want to remove the head?
2. Why?
3. Do you have a replacement head gasket and valve cover gasket?
4. Since you "should" remove the pushrods before you lift the head off, you could loosen the valve lash adjusters to release the tension on the pushrods, then remove the rocker arm assemblies by removing the bolts which fasten them to the head.
Note that there is an oil supply tube feeding the rocker arm assemblies which needs to be disconnected. Be careful NOT to snag it when you lift the head off.
IMPORTANT: LABEL EACH PUSHROD WITH ITS POSITION (1 - 12), front to back, so they return to the lifter they've mated with.
5. Refer back to steps 1 and 2.