My 67 Belvedere ran 10's every day during Drag Week 2017 with a normally aspirated 596 Hemi, 727, leaf springs, 315/60 MT Drag radial, Dana 60. Car is caged and certed, but since I didn't have a comp license I was limited to 10's, and was not using everything the car had. Best speed of the week was 138 mph, best ET was 10.26. We drove the car about a thousand miles that week. All driving and passes on pump gas.