18-11-2020, 11:57 AM
As Mark says, a subject discussed a few times recently:
https://www.austinsevenfriends.co.uk/forum/showthread.php?tid=5173&highlight=valve
https://www.austinsevenfriends.co.uk/forum/showthread.php?tid=5178&pid=56383&highlight=valve#pid56383
https://www.austinsevenfriends.co.uk/forum/showthread.php?tid=5173&highlight=valve
https://www.austinsevenfriends.co.uk/forum/showthread.php?tid=5178&pid=56383&highlight=valve#pid56383