/6 Exhaust: Dual or single? Your thoughts

Rainy Day Auto said

I am putting together a slant six valiant wagon with a hotter than stock six but I am still using a single exhaust. To me, most six cylinder engines sound just awful through duals. A 2.5 inch single exhaust set up should be plenty and still sound healthy.

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It's not about sound, it's about performance! 2bbl carburetor? What's the setup? if it's a 2bbl, 2.50" exhaust is all you need. I think it's funny because loud exhaust does not mean performance, usually the exact opposite. Port your heads and exhaust manifolds/and or upgrade to exhaust headers sometimes is all you need before larger pipes.