Core support question

1.25"

Stock radiator 67 dart, 273 2bbl

I did not check if the level was level.

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This is how much space there is between the hood and the top of the road cap.

Minimum is 1.25 longest it 1.5"

And yes that is blue Play-Doh
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I have a griffin aluminum supposedly perfect fit radiator

Is there a reason you could not lower the rad on the core support?