Big Block ticking? Flat tappet cam. Normal?

Resetting the lash will have to wait for the weekend. But I will try. I have 440 source 1.6 ratio rockers.64BAF060-6046-47EB-8048-F53123E18E69.jpeg

the cam was ground for 1.5 rockers with lash at .016 and .018. When going to 1.6 lash jumps to .017 and .019. Numbers on the rockers are cold lash settings