15-04-2020, 03:52 PM
(15-04-2020, 02:31 PM)Reckless Rat Wrote: ....The later head is the higher compression version which was and is an accepted power increase modification along with the SU carburettor.....
If you say "an accepted power increase modification" - does it mean it was supported by Austin and documented in a WSM? What amount of power can I expect?