which kbs???

Give it to you straight, Get a book, or 2. How to rebuild my small block MoPar and hot to hot rod my s?b mopar and read up. It will answer many questions for you.

So far, reading most of your posts, you could have read the answers by now easy.

Your answer is mill. (AKA Shave)

Take your block to a machinest and have him check it out. Best bet is a blue printing.