I was told by a respected tuner recently that he had never seen much power come from a B303 cam and to not bother installing it. I am not doubting his expertise, I am just wondering what kind of results others have had with them. I have one, that I got for free, and was considering putting it in. My car is a factory short block with GT40 heads and the bolt on supporting hardware. What kind of power could I expect from the B303?