Hey Brent, back in the day I had a pull truck FE go over 9k when the
oil pump shaft broke and then it made a really big noise, and immediately disassembled itself.
Seriously though, we tried everything we could think of for more RPM. 62-6800 was doable but the valve train available to us at that time wouldn't hold up. It's great that you were able to take a good idea and using todays technology come up with a solution to a long standing problem.