I know the car the op is talking about. He wants to take it back to 1972 Pro Stock application. Ladder bars started being used a lot in the next years 1973/4/5/6. The Cars on 002-3 SS springs went around 9.40 back in 1972 with both a Stick and Clutch Flite. The motor for this car will start out with around 800HP to get the bugs out of the car and then the next motor will be around 1050 HP then there could be a third motor with 1250 HP if this does not over power the Chassis making it unsafe at both the start and top end. He has both sets of old and new SS 002 003 springs. Will they work for his application and go straight from start to finish? Do you think the 60 foot will be terrible? The use of Caltracs has been discussed for the car for the future and if people have tested their car with SS Spring and they do not work going fast then maybe the car will have to start will Caltracs but the stock look with Springs is what is trying to be accomplished if it that can be done. Car is light but has not been weighed yet. It could go 9.00s at 150 or faster so this is why he has asked how good these super stock springs are both on the Line and top end. Ladder bars in the past have been used in this car but likely will never be used again. Just looking for information from people that have used SS Springs or are still using SS Springs to try to get a feel for what he is trying to accomplish.