Very Nice Truck! It seems to have alot of power slinging dirt with those monster Meats.
What wind is that motor? I didn't know the Mamba max would push a larger motor/truck so well.
What spur/pinion combination are you using?
It looks like you really found the sweet spot with that setup. Way to go!
P.S. Oh..........22/70 gearing......I see that now.