The DSS Aluminum or Carbon shafts are the way to go. It eliminates that soft rubber guibo that twists and moves under heavy acecleration, even worse so on a modified car that accelerates faster
We use DSS on all of our applications from the Vettes to the Camaros. Always have great deals on Frank's DSS components, and only one that we use in our car... 1.39 60' in a 4100 lb car with his components all day long!