340 or 408?

May I inquire into your oiling system. What does it take to keep the rod bearings alive in your set up. I lost #7 on my 340 some years ago. After it was rebuilt it survived plenty of 6700 rpm pulls street racing, yet I lacked confidence in camming it up more. Surely your spinning your combination up far higher than I did, and I would like to have confidence in getting into the mid 7000 rpm range.
there is zero oiling mods done. engine has been together since 2021 and it does see 7400 rpm at the top end.