Shewman's High Flow Thermostats

[Terry,OH]

I could not get my 35 engine over 140 without stats, I now have Roberts and run 180-190 driving very hot days. The only problem I encountered was a small bit of overflow when the stats opened due to surge of coolant to the tank. Took coolant level down a bit and no more overflow. I do not run a pressure cap and the overflow tube is not blocked. I'm happy.