Chicane is absolutely correct. Check with any circle track supply house. The dirt and asphalt modifieds that use stock front clips have been using the 68-72 Chevelle clip for years. There are many parts that have been designed around your exact geometry. Some places to google are: Coleman Racing, Lefthander, Howe, Allstar Performance, UB Machine, CV Racing Products, Stock Car Products, Speedway Motors........... Start there. Good luck and nice project.
