72:1 ratio.... riiiggghhhttttt
Normal gears are ~19:1, high torque are ~21:1, high speed ~16:1
Buy a set of XYT gears as temp replacements, they're $8 and cheap steel.
With a ratio of 72:1, you'll be getting like 3 RPS
Or get these http://www.ebairsoft.com/double-torque-gear-p-2035.html
At stock CA velocities, you should be able to run high speed gears, give whatever you want a try and see the results, if you go to the parts section, there are double, triple and max torque sets, along with high and ultra speed sets.