OHH good news (hope its not to premature) but having fitted Rays radiator, re bled the system and checked everything over yet again, things are a lot better.
Started the car took its for a quick 3 miles around the housing estate and then sat it on the drive at tick over for 15 minutes whilst I nattered with the next door neighbour about his rally car, (more on that another time), the temp gauge only went 2/3 rd’s of the way up the gauge a lot lot lower than previously.
Secondly the Metal air filter on top of the carburettor used to get a lot of heat soak its now cooler, the hoses to the heater are hotter as is the radiator cap, so it suggests things are flowing better.
I have had a look at the old radiator I suspect some of the pipes from top to bottom are blocked solid, no matter how many times I have flushed it through with a good wiggle and poke with a length of wire I am able to dislodge yet more mud!
So sounds promising doesn’t it? We shall see after tomorrows 10 -15 mile run it trip which should get me to 50 miles so far… Saturday is busy as is Sunday so I am getting a bit short of time in which to run this in, all I can do it try my best.