Very cool deal. Yes running your car wide open or near wide open for miles at a time will separate the boys from the men. The tuneup better be right if you expect the motor to survive.
I did it with my 340 challenger at the Bonneville salt flats on a 95 degree day. I ran near wide open for over 5 miles at a time 3 times. It was a thrilling experience even though I have gone much faster in my top alcohol dragsters.
I bet a lot of street/muscle cars that guys drive around town would not survive because tuneups are off.
This was free, no one was around except for some tourist like ourselfs.
Oh yea the AC was on the whole time, I never turned it off and the car never got close to overheating. It climbed up to about 3/4 after about 10 minutes of wide open throttle, but cooled down when I slowed to about 100mph and cooled all the way down idling next to our rig in 95 degree weather. That's a solid cooling system and the toughest test you could put it through in hi altitude to boot. It is a brutal test of machine.
the year before we were there but did not unload the car and run it, but I did peg the speedo on our tow rig on the paved access road that has no speed limit signs.