I posted this in the new guy spot by accident, so here it is....Well I have been reading lots of posts on over heating. Here is my issue. I have a 350 in a 1959 Willys wagon, installed by the previous owner. It is over heating bad! What I have done..Flushed the system with H2o and vinegar, replaced the water pump, replaced the thermostat with a 165 degree one, it has a fan shroud, it has an electric push fan on the front of the radiator and a trany cooler, also the mechanical fan off the water pump, new hoses, new antifreeze, the radiator is a four core copper one, pressure tested the radiator and back flushed-good flow , Pulled the thermostat out, I can see movement of fluid in the top of the radiator with cap off. I drive about five miles and the temp goes to 230 degrees. I reset the timing to 0 degrees, it was at 16 advanced. Still over heats bad. Should I now assume the water jackets are clogged, vehicle sat for eight years... Should I run some CLR through it ...? Motor does run strong. Any ideas or help would be great!