Mines not from a Chevelle
It has towed before, albeit wimpy stuff like horse trailor and the like.
But I'm not a-towing, and if you're running a 500CID engine with 4.11's, and a TH350, neither are you.
Besides, original post didn't mention his goals...you posted yours, I posted mine.
Are either of use incorrect? No.
I lean on the side of getting there quickly