Lift / Slapper bars on my Early Dart Dragcar

Anyone every have success with Lift/Slapper bars on early A bodies?The reason i ask is because my Dart sqauts on the launch ,instead of lifts in the rear.The car is 60 footing pretty well at 1.63 on the foobrake ,but a freind noticed that the stock springs are rolling pretty badly in the process.Im getting great weight transfer ,i just think that the Lift bars would be better.I got sum old bars from Craiglist for cheap ,and they are the heavy duty kind that have the spring plates made to them with the a clamp on the front and rear of the rearend center line.I know about Caltracs and Super Stock springs ,but i thought i would try something a little different .Here is a vid of my Dart on a 1.66 60 ft run ,and notice how its spun out of the gate.What do you think ?

http://www.youtube.com/watch?v=BIIyWUefEYQ