Both on 4s, the motors will have the same power, because they are both 1y turn motors, and thus have simliar current drawing capabilities. You would gear the 2200 a few teeth higher than the 2650 to get the top speed up, and once you did that, you lose the same proportion of torque at the wheels.
Check out my custom converted 8ight:
Sub 7lb, lowest CG of any 1/8 buggy