I am going to ride on the shirttail of this conversation with a muffler question. I currently have a stock 383 RoadRunner with Accurate Exhausts "mostly" reproduction system with manifolds, "Hemi" mufflers and turn downs. For this car the sound is not too loud but can drown out the radio. I am building a Conv 69 RR with an 05 5.7 Gen3, EFI, stock with manifolds. I want to hear the radio in this car but also want a little noise at WOT. Never had a Gen3, so how do I pick the muffler for a highway cruiser? It needs to be just a little quieter than what I have now.