Long valves on W2's with .600 lift?

We were at 13.5 according to the original 1993 build sheet at the engine shop. That was with a 1008 gasket @ .039 thickness and a 4.140 bore on those gaskets iirc.

I will now use a .027 Cometic with a 4.040 bore which will kick it up a bit along with a skim cut on the decks after the one new sleeve is installed.

These slugs are a thing of beauty. Honestly not what I ordered but they will work fine. Maybe better than what I wanted so perhaps they will be a Godsend for my build. I won't say much more just that I was shocked when I opened the box.