For my revo I went with a savox 1283sg for steering. Over 400 oz of torque and fast.
Dimensions(mm): 40.8x20.2x37.4 Weight(g): 80.0 Speed(@4.8V sec/60): .16 Torque(@4.8V oz-in): 347.2 Speed(@6.0V sec/60): .13 Torque(@6.0V oz-in): 416.6 Gear: Unique Steel Bearing: 2BB Case: Full Aluminum 25 Tooth Spline
For throttle a savox 1233sg. Very fast servo
Dimensions(mm): 40.3x20.2x45.0 Weight(g): 79.0 Speed(@4.8V sec/60): .08 Torque(@4.8V oz-in): 138.9 Speed(@6.0V sec/60): .07 Torque(@6.0V oz-in): 180.5 Gear: Unique Steel Bearing: 2BB Case: Full Aluminum 25 Tooth Spline
The 1283 was $100 and 1233 was $70 off ebay