Muffler recommendations please

I need to replace the mufflers on my 1970 300. I had them replaced maybe 400 miles ago but I then blew them up by doing a bad job installing a distributor. I can't find the brand of these mufflers but they sound really good and I'd like a similar sound. They are basic looking mufflers but gave a louder sound than stock. I'm pretty sure they are just a chambered muffler type with a louder tone. There is a part number on them but no results while googling. The place that did them closed up so...

Muffler recommendations please
Author: challenger