I run 100 with mod and 96 with stock. This keeps the motor in about the same place for weight balance between the cars. The 96 allows you to run a little higher gear on it then the 100 also. Don't think I have a 94 but I got a 88 just incase. Also the thought is with the 96 you have lower rotating mass so you accelerate just a little more faster. it's back to a mind game at that point.