is this true about a 350 sbc vs a sbm

I worked with a guy like that anytime anyone started talking cars with me. He was always telling me I didn't know what I was talking about....he lived through the muscle car era and I didn't. He had a Chevelle with a 327 and a 4 speed, I got so tired of hearing about how a 340 or 383 was no match for his Chevelle.