boiling after 3 miles but...

Yep, something like that.
I see you've got a -62 Dodge on your avatar, I also had one once that had a well-known drag racing history here in Sweden, I had it long after thou but I even remember it from when I was a kid & the car was original & the man who owned it showed its engine with the twin carbs & all I thought was "bah, no Hemi..." because in those days the 426 was the stuff to have & as a kid you don't know much yet. ;)
By the way, it was a red 4-door Dart 440. About 20 years later I got to know it again & it was for sale all busted up with a hot 440 & 8 years after that it was in a barn that caught fire & I bought it with the interior burned out & the whole body all black, sanded it down & painted it red again, sold it to a guy who scrapped it because a convertible neened floor... :( There went some racing history.