Does This Debunk the "Coolant Can Flow Through the Radiator Too Fast" Idea???

RustyRatRod said

I bet you didn't retune for the cooler running temps. Whether it would have made a difference, who knows, but that's imperative.

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There was no re tuning, power was down just like he said with ‘cold’ heads. I’m sure Jenny knows a lot more about engines than we do.