I posted several months ago about the way to find that old time sound for my 230 1966 Chevy. RapRap suggested some chambered mufflers from a corvette. I bought them back then, but just got them, and the duals installed at a Midas shop today. When the guy called to say it was done, he said ummmmmm...I hope you were wanting this thing to be loud!!HaHa It sounds awesome!! If you stay out of it is nice and quiet(neighbors like this), but you can really make that thing rap!!! Thanks RapRap