How far to rev this 273 commando build

As for the graphs, the lines always cross at 5250, IF; the same scales are used for both torque and it's derivative horsepower. For compactness, many times different scales and even abbreviated scales are used, and then they can cross anywhere. And sometimes I think they just mess 'em up to screw around. You can see this when you see a small hi-reving engine that makes power after say 8000, but not a lot of torque. Then they re-scale it and scrunch it up to fit in a magazine article, sometimes lopping off all the power below say 3000 or 4000, to make room for the torque numbers. With a lil math you can get the numbers back, so it's no big deal. The graph here discussed from post #6 , is just such a graph with a re-scaled axis on one side or the other, looks like the torque side, which may also have been scrunched, that is to say compressed. I picked three random points, did some math, and the two lines appear to be of the same origin.