I have a piece of 1" angle iron about a foot long with a J hook bolted to one end. I hook it under the rocker arm on the pushrod side and use it as a lever to cycle the valves up and down with some KROIL on the stems. It beats prying on the rocker arms with a big screwdriver and possibly breaking one.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!