I took a rocker cover off today to look at my rockers.
The heads are World Products with roller rockers.
The valves that are closed have a little bit of play (lash?).
I pushed down on the pushrod end of the rocker with an open valve...it seemed solid. If this was hydraulic, I'm told that I would have been able to push down on the rocker.
I'm guessing that this is a mechanical cam so I need to adjust the lash. Am I right?