Ive read over and over that kegger mods, depending on how they are done, can either increase torque and maybe a little horse power, or increase horsepower quite a bit (usually cutting off more material), but decreasing torque? Im not a engine guru, so to me, more air flow would mean better performance on all levels.

 

You aren't getting 'more' airflow, per se. What you are doing is changing the cylinder filling aspects of the manifold. To wit: At what RPM range is it most efficient. It may flow a bit more air if you cut down the runners, but, all your are really doing is moving your power band up a few hundred RPM. You may see more horsepower, but, at the expense of torque down low.

HP is calculated from torque, so, if you move your torque curve to the right, math says, you have more horsepower.