Run him now.......use him as a test car. That is what I did with my friends GTP. He runs a consistant 14.10 all the time. I ran him after every bolt on. Then I could see what was really making my car better...........

I ran him with the stock motor and street tires......lost by 7

I ran him with the full exhaust and street tires......lost by 4 1/2

I ran him with drag radials leaving at 6K.......lost by 1/2

I ran him with street tires and a 75 shot of nitrous........lost by 1/2

I ran him with a 125 shot on street tires.....finally beat him by 1 1/2

I ran him with drag radials and 125 shot.........beat him by 7........I would leave at 6k and right when the car moved I was on the Nitrous..........

Now with the blower on street tires.........who knows.........i think me by 3.....

With the blower and nitrous....on drag radials............ulitmate kill. Me by 10 atleast.......

On slicks and a 150 of nitrous my car ran a corrected 12.71.........my track is 2000 feet above sea level......without the correction it posted a 13.15......

See how I used him to see what worked the best when installing bolt ons......he is my test dummy..........I think that is what you should do......

The nitrous was the best bang for the buck.........and next were the drag radials. But my suspesion is set. So I can leave hard.