Suggestions Wanted For 408 Stroker Mufflers

Hi Guys, I’m putting a brand new 408 in my 72 Dart Swinger. Backed up with a Billett hand built 727 and a 8 3/4” rear end with Sure Grip and 3:73 gears. It’s gonna be a monster! I brought a pair of Flowmaster 40’s to my mechanic and he told me they would be crazy loud. I’d like the motor to purr at idle and growl when ya give it gas, but I don’t want to be that asshole with the stupid loud car. I have the NOS exhaust tips. What mufflers would you use?
Thanks! And thanks FABO!