When all was said and done, we ran the modified bike on our dyno and recorded the numbers. Bottom line? The Softail Street Bob showed an increase of 18.93 hp along with a jump of 1.45 pound-feet of torque. But more important than the peak numbers are the torque and horsepower curves; notice how the horsepower tracks a steady increase all the way through the rpm. The torque curve also has a smoother decrease rate than the stock numbers, with a drop-off at a much later rpm, which is also less severe than stock. With our Screamin' Eagle Stage II Torque Cam installed, the Street Bob's M-8 107 engine is now able to stay closer to peak power throughout more of the powerband.