RACING PREVIEW FOR THIS WEEK BOTH LIVE AND ON TELEVISION This weeks’ racing preview highlights the only two area tracks that in action this weekend. Things are a bit calmer after last week when three regional tracks were in action. To the north the Diamond Mountain Speedway, in Susanville, Calif. hosts another of its points races with the action beginning at 7 p.m. The track is located at the Lassen Fairgrounds.   Closer to home the Fernley 95A Speedway, starting at 6 p.m., is hosting the next round of its regular season with all the car classes is action. The