I need to find compatible headers for my 1968 Riviera with a 430ci v8. I don't quite trust google to find the right headers so I'm trusting my fellow gearheads to point me in the right direction. I'm hoping to find headers that will work with Flowmaster Super 10's that intend to put on. I'm looking for the low, mean rumble that every muscle car needs. Any suggestions would be appreciated!