Aren't a 56 Chevy car and a 71 Olds Cul***,fairly close in wheelbase length and track width? I know=taboo here,but since NSRA allows em in that makes it OK=right? I still have my old '56 I plan to resurect someday ....and It is all rusty in the floor and its frame is also shot [and rusty]. I was hoping they are somewhat close... I found a 71 Cutl*** Convert today here, that the owner has restored the ch***is mechanically on and also built a new 455" engine that has less than 100 miles on it! The body on this convert is the problem as it has lots of trouble...that and his prioritys have changed............ so it is available.... Any help?