Engine tick help please (video)

Check to see if the pushrod is contacting the opening in the head. If you have a lot of lift the geometry can change and cause one or more to just barely hit. Easiest way is to pull the pushrod, clean the oil off and paint it. Let the paint dry and CAREFULLY so as not to scuff the paint reinstall the pushrod. Run the engine for a few minutes and then pull the rod and look where the paint has been rubbed off. You may actually be albe to see the transfered paint on the passage in the head. If its contacting you may be able to use a rat-tail file and open up the passage. Just remember to pull the intake and put some rags in the valley to catch any particles then clean up REAL good when finished.

Larry