Most of the #80xxx, and #81xxx numbers are the lifter, spring, retainer kits? Re-looking at the photo, it says component kit which is the lifters, springs and retainers, but not the cam. In the 1980 price guide it says it cost $297.00 List, $207.90 User.
I looked through the 1980 Catalog I have, but it does not show that part number? It may have been a Component kit part number before 1980?
If you have a block to put the cam in, and a cam degreing kit, you cam measure the specs off the cam.