I have just overhauled my 8 valve engine. The car has air conditioning fitted - perhaps by the factory. On the firewall between the oil filler pipe and the distributor, there is a vacuum actua ...
the mechanic knows his Alfas. I am betting that the overheating has to do with sticking distributor centrifugal advance (lowest achievable idle 1100 rpm and very slow return to idle after acce ...