25 Here are the numbers from the carb comparison. As you can see, the 950 won out, but not by much. In actuality, either carb would work; however, the motor seemed to “like” the 950 better as Willis said. Not only did it sound better with the 950, but the A/F stayed much more consistent across the whole power band. So the decision was made to move on to the spacer test using the 950.