Kevin,
I did not notice this. I'm wondering if the tach was not reading right on the dyno. I'll be back there in 3 weeks after my honeymoon (getting married on Sunday). I need to swap out the Delo oil for synthetic, put on an underdrive pulley and a ported throttle body. I'm going to make 4 back to back pulls to see what kind of TQ/HP each one gives if any. So I'll take a closer look at the RPM when I am there again.