RE: novarossi
Ram's right. If you are an experienced racer, you should look at the high end novarossi, rossi, RB, etc. If you are a club racer, you need look no further than OS for power, reliability, longevity, and ease of tuning. Having a reliable powerplant allows you to focus on tuning your chassis and driving skills rather than your carburetor.
i8tweety