The problem must be in the parts/areas that were changed out. If need be I'd change them all out one at a time if a visual of all of them (heads/intake/cam/valvetrain) reveals nothing obvious
It's something. We've eliminated everything with the heads, pushrods, and valvetrain. Must be something with the cam, that's the only thing left that we changed.
Have you checked the engine bay or body for a source? I had a tick coming from the drivers side that I traced to the valve train but it turned out to be a screw hitting the back of the engine. Took me months to figure it out.
We're wondering if the lifters themselves aren't getting enough oil volume or pressure for some reason or another. There wasn't a tick with the old cam, so maybe the more aggressive lobe profile and/or higher spring pressure makes the difference between tick or no tick.
