BrownDawg,
Whats up, I won the stock truck winter points series at A-main raceway.
I think tires and setup are more important on that track for stock than a fast motor.... but I ran an Orion core motor with 12% silver content brushes and also kept the comm cut about every 4-5 runs. Also keep in mind that track is pretty tight compared to most tracks, so you need to adjust the setup accordingly. Hope this helps.