I'm going to try to keep most of the firewall. I will probably have to modify it a little. Plan is run an injected small block with a 4 speed. I also have an olds rear with 5' ladder bars that Jim Tinsmith built for the car that Paul Balash has now. Paul gave me these when he put a 9" ford rear in his car. I have axles and a dana 31 spline posi unit for it as well.