84 K25 Exhaust Opinion

[Dead Parrot]

Unless this is a race truck, don't worry too much about the mufflers being restrictive. It they are OK for a 454, they should be great for a 327. Sounds like you wanted quiet as a main objective and have achieved that goal. Could be your exhaust guy is in the "Louder is Better" crowd.

As mentioned, if you are subject to emissions, I think your truck probably came with a converter. Probably one of the older style very restrictive pancake types. Something to investigate and be prepared to deal with. Better to have a plan and not need it then be told to park the truck until you do thousands in corrective restoration to OEM config.