Anyone ever tow with a '60's/'70's muscle car ?

I think the old Chevy big blocks - the 348 and 409 - began life as a truck engine. If memory serves, the 409 was advertised as a 409 hp engine with 409 lbs torque. That should get most people up the hill, but I think without computers and fuel injection we saw more engines running leaner in the thin air and overheating back then.