I don't have alot of experience in the drag racing field, but I'm thinking maybe 300-350 whp with a mildy built bottum end, and slicks will get me somewhat competitive. Keep in mind that this isn't my daily driver so I'm not too terribly worried about wear and tear. Really, I'm just trying to see the pro's and con's of the engines. I know the d is lighter and cheaper, but the b has better headflow and stronger transmissions (i think!)..