How far to rev this 273 commando build

RustyRatRod said
That graph in post #4 is incorrect. Torque and HP always cross at 5250 RPM.

I think you're referring to the graph in post #6. They just made it look goofy by using two different scales(torque on left, hp on right). Notice how 280 is lower down the graph than 235. If you just slide the torque curve up until they intersect it makes sense.