Frankly, I was shocked that it would spin that high. It had a sig hydraulic cam, with only 225 at .050. and a stock nothing remotely special valve train. It took a looong time to get there in third (4sp, 4.56).
I think it could have been at least a half second quicker, shifted at 6500. I'm betting that 7000 was WAY past the hp peak!
I did learn my lesson though. I experiment with shift points all the time, shifting as soon as I can, and still run decent .
The small block roller motor in this was shifted at 6000.