I ponder on creating another thread, Mick - where we might include ourselves in the group of pesky road users, along with those who tow vans, horse-floats and a plethora of slower moving obstacles...?
For many of us, maintaining the posted maximum road speed is usually achievable - but for many with stock vehicles, some of the climbs on major highways are beyond the ability of the little 2261 cc grey... and probably more so - the hydra-matic...
Our major highways have drudgingly and very slowly been brought up to a standard where it is quite realistic to legally run uphill at 70 mph on some huge and prolonged climbs... maintaining the "aura" and historic splendor or our "period" vehicles - we are in fact a nuisance to those with modern injected/turbocharged vehicles...
Commencing a post on traveling "protocol" within this forum is probably worthy of suggestion.. not all of us have a "V" configured engine/powerplant under the hood of an FB/EK... and some of the "original" motors with little mileage are more at home and were designed for the highways of old - especially when towing a period "bondwood" caravan....
after driving my ek around for a few years,( on the central coast hills) That's the one reason i started to put a v6 into mine,and when i drive down to Cowra ( all going well) it will be a nice drive