Champion radiator for ~500hp small block??

Just Send It said
Okay...I'll play

So how would removing the shroud help when stuck in traffic, or at a stop light, or in the staging lanes during the Summer? When the only air that passes over the core, is what the fan is drawing through its surface area. I don't pull out of my house and immediately onto a highway. I have miles to drive to get there.
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Put down that goal post. I never said that.

What I ACTUALLY said was...
Jarlaxle said
I cannot fathom how that doesn't boil over on the highway! It looks like more than a third of it is completely BLOCKED!
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Are you willing to trade a marginal temperature decrease at highway speeds for a significant temp increase at idle? I don't see the net benefit of that.
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Nonsense. There will be little to no difference at idle as long as the fan is working properly. There is a reason that exactly ZERO original manufacturers block off part of the radiator.