1968 Barracuda w.73 Charger 440 RB CAM MOD

The killer & limiting factor for a cam change is the very low comp ratio. In order not to convert it to canine status, you need a short duration cam with short seat timing to 'preserve' as much compression as possible.
I gather from your post that you want the sound to be 'noticeable', but with good manners & good power. Join the club!
You want a single pattern cam [ same int & exh duration ] because a dual pattern cam [ extra exh dur ] adds overlap, & that kills low end power in low CR engines.
I would use the Isky 264 Mega cam.