8secBusa - how much do you weigh ? I have 17/41 gearing and ran 8.868,8.885,8.911/high 155~low 156 mph(still stock wheelbase)but I only weigh 175 lbs.. Our mph in the 1/8th and 1/4 are almost the same so you are definitely making enough power to get there. I tried 17/42 and actualy ran 156~157...