Leaf springs with ladder bars and floaters can work well. Before re-backhalved my Duster, it was a leaf spring / ladder bar car. Best 60' was 1.35 but the normal was between 1.37 -1.40 depending on weather and track. Ran between 10.05 and 10.20. Won my fair share of races, so it does work. Take some time to get it set up right and test, test and test until you get it where you want. Good luck and have fun!