This is what mine sound like.. with full exhaust.. actually quiet in the car but too loud outside, the issue i have is when getting on it, they sound raspy like a old mans chevy pickup with straight pipes.. turns my stomach. Mufflers are Gisbon MWA's which have very little cfm drop, cause they are basically straight pipes.. :)
https://imgur.com/gallery/1962-plymouth-finally-moved-qCj2ig0