Must admit this has caused a grey area. Whilst indeed Bus Times has picked up a stop called Spindle Road, it's not showing on Google Maps, and also Spindle Road is a cul-de-sac and not off St Faiths Road, as Bus Times suggests!
What we can do instead, despite still only being in the vicinity of the 21 route, is take the five minute walk to the bus stop opposite Bussey Road (which is actually off St Faith's Road), and board the 1933 First Norfolk & Suffolk Orange Line service 21 to Norwich (Rampant Horse Street), arriving there at 1953 on Tuesday evening.