Considering that most 250 engines only had single exhaust and it was a 2in pipe. Even 2in duels with glass packs can be loud and obnoxious.
Just because the factory installed 2" single exhaust does not mean it was breathing good.
IIRC,Clliford catalog recommends two,2" pipeing for a street car.
It was pretty loud when on it,that is way Clifford recommended running a "Y" pipe & to run single exhaust.
I also ran that,but it sounded more like a 240-280 "Z" car,& that was going with 2.5" single exhaust system.
I had Clifford headers, 2" dual exhaust with two turbo mufflers all the way to the bumper. It ran great,great bottom end ,mid & top end power. This it not too big running 2".
At the time my Camaro ran low 14's in the 1/4 & was a daily driver w/9 to 1. 250 C.I. engine. 3 speed on the floor OG tranny.
MBHD
