Dana67Dart said

There are so many reasons that the rad is not "too small"
Is there a product to put in that would clean/dissolve clogs?

1. Fan type: steel
2. Number of blades: 7
3. Pitch of blades: unsure
4. Diameter of crank pulley: equal to water pump
5. Diameter of water pump pulley
6. Number of impeller blades in waterpump: 8 blade 2951571 reman
7. Thermostat temp (if it is a 195, 200 would be a normal temp): need to check
8. Where and how you are measuring the temp: at thermostat housing and top of radiator
9. clogged radiator passages
10. Clogged water passages in engine
11. Number of rows in rad
12. Fins per inch between tubes
13. Aftermarket fan shroud: NONE
14. Lack of bypass hose.

What did I miss?

Start with what the factory put in a 340 car. Then "improve" from there.

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