I agree with dd mareo. My car had the same symptoms. I changed the water pump, thermo, flushed the system a thousand times to no avail. The radiator actually flow tested ok, but was so old that it just didn't have the heat exchange rate that it should. You may remember me talking about it. see "radiator upgrade" in main forum. The b210 radiator is awesome, fits perfectly with no mods other than strapping the top down. You can even use the factory shroud off of the 210. Good luck and hope this helps.

Jets are easy to find, just go to http://www.redlineweber.com/

I doubt if this is causing the overheating, if you mean that water is boiling out of the radiator.

Two tests:
1. Test the radiator flow: take off the lower hose of the radiator. Block it with your hand, and fill the radiator with plain water. Take your hand off and the water should gush out in as big a stream as the lower opening. If it runs out in a smaller stream, the radiator has blockage inside.

2. Take the thermostat out and do the same with the engine ... it should run out fast. By the way, a 180 thermostat is good -it'lll often take away ping so you can run regular gas again and you can put a 7lb cap on instead of a 14lb (easier on the radiator).

If you mean that the gauge goes over to the H side (but doesn't boil over) -- that's probably just the dashboard gauge. Test it with a real calibrated test gauge. If it's going signifcantly higher than the thermostat rating ... most likely the thermostat is bad, radiator too small, electric fan not effictive. The stock radiator will heat up when it's 80 degrees outside, but not boil over. But it won't break the engine unless it boils the water out. Fitting a larger B210 radiator will make it run cooler.

I finally got the car running yesterday with the new head and new distributor but it still overheats. I have narrowed it down so much now that the ####ty Holly/Weber carb is about the only thing left that can cause overheating. I do not like that carb. It is not too easy to change jets in and jets are impossible to find for it. I can use jets from stock 1200 carbs in the high range but the mid-range is the driving section and the jets are impossible to find for it. I think I will have to solder up the jets and redrill them to smaller venturi.

It is a new carb with only less than 2,000 miles on it. I would trade the whole setup for a good stock carb any day. Any takers for you Holly/Weber fans? I paid over $250 USA for it.

Mareo