Another very well known name in the world of 'A' series engine Tuning is JANSPEED.
This was founded by Jan Odor in the early sixties in Salisbury after he left 'Downton' to set up on his own and is one of the few companies from that era that are still in existance today.
Janspeed in the early days gradually became successful by making sure that their prices were quite a bit below below that of rival companies, and over the years the quality of the products created by Jan Odor ensured that they continued to grow and eventually outlasted most of their rivals.