[strictlypersonl]

We currently use 2-bolt mounts, 31-2222 and 31-2223 on our Pond installations. It is stepped also. I didn't do the installation, so we may have had to shim it on that block. On our very early cars, we used the 3-bolt ones that you have, but never had to shim for the original iron FE block. (The stands on the chassis are not the same between the 2-bolt and 3-bolt mounts.)