[phonconn]

I agree on the distilled water. At the St Louis 88 meet we had tons of overheating and the culprit was anti freeze gumming up the tubes. Model A's were never meant to run on modern anti freeze as anti freeze is designed to run under pressure. It is my understanding that the new yellow anti freeze is kinder to the Model a radiator but water is always the safest way to cool your A. The radiator should flow about 50+ gallons of water per minute and if you are not loosing any coolant it should be cooling fine but if it is spitting water out the overflow then your tubes are clogged as the water pump is pumping at the rate of 50+ gallons per/minute.