So what do you guys thinks has to be the best sounding STOCK engine? Exhaust being allowed as a change, but internal engine mods not allowed. And lets keep it out of the muscle car era, so pre 63. For me, it's a tough one, as I love the sound (if it even makes one) of a quiet smooth flathead Ford. But also love the sound of a stock Chrysler 392 (almost sounds mean in stock form). What your opinions?