[Engineer Ed]

Pedro...
Man that would be great.
I'm wanting to sell #97 and buy a coupe, but I'm not sold on one yet until I see how she feels on a track.
I'm concerned with the heat inside the car more than in the radiator.
You commented that there is an upgrade ac unit so that makes me feel a bit better.

Good luck sorting out the heat problem.
I'd get the coolant system checked for combustion gasses.
If you were truly running at 250 deg, I think you may have warped the heads or at the least blown the head gaskets.

Ed