Yup. Crossover is at 5250. I had it wrong. HP is fairly consistent from 5000-6000 with the peak around 5500. HP falls off after 6000, but really only loses about 20hp at 6500. Torque is pretty good till the 5250 crossover, but falls fairly steeply after that.

I'll play with the spreadsheet and see what numbers I get. Should be interesting. Thanks.

David