by now referred the problem to the mechanic, dami na raw kalawang, he said iflush muna radiator or palinis todo.
OVERHEATING is caused by clogging of the radiator. inefficient na thermal transfer so complete flushing dapat. engine is still filled with rust reflush uli after one week. I'll do it for 4 consecutive weeks using distiller/purified water mix. If problem persists, radiator overhaul, then .. sana ala pa tama head gasket considering the corrosion and overheating.

*blacksharkfin
nice car, nice engine