Leave the head on for now. The clearance on the valves should be around .012 so take a .020 and place it on top of the valve then turn the engine. This will give the valve a "nudge with direct force" which will begin to break it loose. If it still sticks go to .030 and repeat. Spinning the engine by hand will work but the starter will be easier and shakes things up better. Do this with oil sprayed in the cylinders.
Getting the valves to move in this way is far better than prying on and possibly bending the valve
. Just a little movement and they should shake loose
.
I see 2 stuck valves to play with. If you can't get them moving like this head removal will be necessary. Use the starter and have all the plugs removed and the COIL hot wire removed incase you forget and leave the key on. Don't want to fry the coil, just remember to hook it back up when you try to start.
Dave Neptune
