well it was very necessary with the Norms dart and landy Dart cuz of the Caltracs... i dont think there is a direct 60 ft increase but your gain comes from the increase in traction and MOPAR suspension doing what it is suposed to...
well even my little slant car, was running bad at the track and still got a 1.91 60ft. check out the lift
vid of the landy car to... thats at least an 1.25" lift the front gets from just the upper bumper
[ame="http://www.youtube.com/watch?v=ZNSpC2Nu-gE&feature=channel_video_title"]SS And AFX Landy In The 9's.MOV - YouTube[/ame]