Mike, I'm glad you asked this. The 39 Olds frame we will most likely use for Colt's car has ladder bars and coil springs. I was wondering how it would work on the street too. I also figured a good set of coil overs and a track bar would net it alright to run. I have a 72 Nova that is tubbed and has ladder bars and I have been researching the pros /cos of them. I think the biggest consensus on a ladder bar car over a 4 link car is the lack of adjustability on the ladder bar car. This is from a drag racing perspective. So on a street car it shouldn't be an issue as long as it is set up correctly to begin with.