Have been to Ardnamurchan twice now and highly recommend it for scenery and good roads. Considerable number of well paved single track that require some caution around blind corners, but for the most part is hazzardless. Very little traffic once off the A830 (Mallig-Ft. William) and onto the A861 and B8007 - just take your time winding through the penninsula and enjoy a more remote and beautiful part of Scotland. Sideline on Mull. Took the ferry from Lochaline to Fishness, Mull. Glad I went, but wont be going back as the road surfaces throughout the island is the worst in Scotland.
Don't just stop at Stronian, keep going to Mallaig and return Mallaig to Fort William the northern route. The whole penninsula it brilliant.
Recently rebuilt and resurfaced, this outstanding road turns to single track if you proceed past Strontian towards Salen and the western edge of the Ardnamurchan peninsula. But the road from Ardgour to Strontian and back is brilliant, wide, sweeping and fast. Stop at Strontian for grub and then go back to the ferry and Ft William. The sheep are ok with traffic, but at lambing time watch out for mothers running after lambs!