I77 From Columbia SC to Charleston WV

We've taken that route a few times (both directions) in our E-450 (6.8L V10) based Class C motorhome.
I didn't think it was bad at all. We didn't break any speed records going up but that's okay, we got there.

I can tell you that Fancy Gap (between NC and VA) is a long climb, but thousands upon thousands of every type of motorized vehicles do it every day. We pulled our fifth wheel up the mountain last summer. Don't try to make any type of speed record, get in the right lane, follow the tractor-trailers and enjoy the view. There are pull-offs along the way if you have some sort of mechanical issue and there are motor carrier help vehicles that travel up and down the mountain.

Once you get into WV, you will go through a tunnel that is kinda cool, cut right through the mountain and then you will cross some really tall bridges, but again, the scenery is breathtaking. Enjoy the ride.

Okay thanks, Rick. Anyone else have any experiences with the Ford F53 along this stretch?

I believe you'll be running through Fancy Gap. I've done that a couple of times in our gasser motorhome pulling a 4,500 lb. Honda Odyssey. Engine was cranking at 4,000 RPM the majority of the trip up the mountain, but no ill effects.

Try to hit it during the day as some of the scenic views are awesome.

Safe travels,

~Rick