It was heading over the half way mark, I stopped it from going any further by turning the heater and fan on full so that took it back down to in between the 1/4 and half mark. There is no milky residue in the oil cap at all, totally clean, no bubbling in the water so I am pretty safe with the head I think, well fingers crossed anyway. I have a prety good suspicion that it is either the thermo, or radiator, as when I get moving the needle starts to head upwards !! But I will take it down and get it flushed tomorrow anyway, if it is the radiator, oh well I will have to get a intercooler !! haha. If you have any better ideas let me know, also, stupid question, where abouts can I find the thermo on the engine ?