Stock and 19 turn.
True the com, fresh brushes, I prefer reedy 767 its been a while check that# the cavity brush 769 is good to. Brush springs? I like the trinity purple purple for indoor racing. Now clean eveything real good with motor spray, And purchase a reedy shim kit, and some trinity teflon shims for stock. The reedy shim kit has instuctions on how to shim. Put it together, put it in the car and take about 5 or 6 slow laps to break in the motor, AND FLOOR IT.
This otta get you started I'm sure some one at the local track or shop can help to.
A Special Thanks to Arno and Rigor for there support...