It may well be worse in summer, especially as the Tourist Board are promoting this as a car !!! route on their North Coast 500 publicity.
Following the North Coast 500 suggested route drivers will start at Shieldag.
Following this one they will start at the other end. http://www.undiscoveredscotland.co.uk/ustours/applecross-torridon/ On a busy day a bike could be the best option! The suggested detours could get a bit clogged up as well.