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My dart launchs good on a nicely prepped track. consistantly 1.34, but will change very drasticly if the track goes away a little bit to maybe like 1.41. I need some advise. Currently have 12 in wheels and going to put on 14's thinking that will plant more of the 31-14/15 hoosiers to the ground. also maybe soften the rear shocks a little on a hot day?.this pic has 9 and half pounds in rear. car is 3350 with me in it.
car has 4 link, 727 with brake and 493 thanks Mike

1.340 60 ft
6.15 at 111.57
9.68 at 137.87

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Dude, the right rear wheel and tire are off the ground that is a real good launch for one tire No wonder it spins when the tarck goes away. whats the deal on THAT launch? did it swerve or go straight