Good advice from the previous posters.................

I ran a-X with stock motors. I beat them by making the car stick to the road in the turns.

When you come out of the turn going faster, because the car sticks
better, you get to the next turn sooner than the other guys.

When you get to where you want to make your car stick in the turns,
I have some low-cost solutions that we can talk over...........or catch me at one of the meets. I have plenty of time to talk, but typing takes forever..................

Get back with me. Setting up a car for someone's individual driving style
is a lot of fun.........-Bob