I made that head removal tool. Isn't working. It is lifting the right side and not the left. The spark plug holes and the 5 studs used for the puller are on the right side. Makes since that is is lifting that side. Of course I haven't lifted it over about 1/16 to 3/32". If I keep lifting will the left side come on up? What do I need to do, just keep on or something else?