After drowning all the studs in a rust inhibitor, I have personally used the cotton rope trick to release the head from the studs.
I simply maintain a 10' length of ¼" cotton rope for this purpose. Simply remove all the plugs, remove all the nuts, stuff as much of one end of the rope in the #1 cylinder as you can, and stuff as much of the other end if the rope in the #4 cylinder, place the car in 3rd gear and rock the car until the head pops up, the rest can be done with wedges. just be sure to soak the studs with your preferred rust inhibitor.
If you only read one or two threads on rust inhibitors, you will find there are an unlimited amount of opinions on the subject.
My nickle.