My car is certified but I didn't go through the hassle and cost of a license. My car runs 6.50's in the 1/8 for a reason. The way I look at it. I'm not going to pay the extra money to run 9.80's- 9.90's. I'll slow the car down. I would go through the trouble to run 9.50's
Depending on what class you run, You could just put a throttle stop on the car.