It's an inside thing. Since RB's aren't supposed to be reffered to as Race Bred that is not what the RB stands for. 99% of the people out there are stupid when it comes to RB's. That is why some of us use "race bread"... Hell I think right now I have the oldest RB setup in that state since I've had mine for 6 years now. It is a great motor, but some people don't understand engine fundamentals...