Another vote for the truck arm susp. Works well for racing and NASCAR loves it. The only exhaust I have seen dumps in front of the rear tires. There has to be a way to run tail pipes. If I was gonna build the 79 Camaro rotting away in my driveway, it would be getting a truck arm. Also Hot Rods to Hell states you don't nee a rear swaybar which is cool. Update... the kit will allow full exhaust.
http://www.hotrodstohell.net/truckar...y_truckarm.htm