It's been awhile since I've been online here but the winter months generally allow time to ponder about improvements to the car. I was watching one of those car restoration shows the other day and they were rebuilding a 351 Cleveland engine. They mentioned that a water flow restrictor under the thermostat was important for the cleveland engine as they were susceptible to overheating. Has anyone found the need to use a water flow restrictor on a 351 Windsor stroker.