when looking at a dyno chart, what does each of the 4 lines mean?

https://ls1tech.com/forums/showthrea...ight=tr224+cam

is the more level line that starts higher but finishes lower than the other line mean that is what the cat does stock? and the new line that starts lower and finishes higher is with the new mods?

 

The red lines are your first run, the blue are the second run. I believe that the numbers that start out higher should be your torque in ft-lbs, the lines that peak later are your horsepower.

 

thanks a lot man