I don't have the specs on that engine, but it's either an in-line 3 or 4 cylinder (4, I think) naturally aspirated. It likely makes 110 to 120 N*m around 4000 RPM. However, since power = speed x torque, power will still increase as torque decreases, up to some point, somewhere around 5500 or 6000 RPM. After that, the curve will start to drop off.
You have a stick, right? Remember that a transmission is just the mechanical equivalent of a transformer--it doesn't make power, it just exchanges torque for speed in equal proportions. Don't try to shift near the torque peak. Shift above the power peak (where it's dropping off, somewhere close to redline), so that you'll always be close to the peak of the power curve. If you shift short, the upshift will push you way down the power curve. You may have more engine torque, but you'll lack the mechanical advantage that the lower gear had been giving you.
