I took my stock '50 2 door on a 400 mile round trip last weekend. I just got the car. On the 1st leg, the coolant puked out the overflow tube when I would deccelerate hard. It never got over 210 on the gauge.
I refilled it for the second leg and it got worse. I was running about 2600 rpm, everytime I let off it would push the coolant out the overflow.
I started running about 2000 rpm and it seemed to stop puking.
When I got home I pulled the hoses off the thermostat housings,no thermostats. I plan to put stats in, should this "fix" the problem? Thanks.