Big Block Dart Cooling

Just curious. Do you have the rubber hood seal installed ?
With the hood closed, it seals the area between the hood and radiator support.

This keeps the engine bay heat from being pulled back over the top of the radiator and back through the radiator.

After trying everything I could think of this is what cured my heat problems.

My Cooling Improvement Project (hopefully)

My Cooling Improvement Project - Part 2

Herb