70duster 360 gets hotter the faster i go

We have been talking and he was having this weird issue of the car getting hot while driving, but said it would cool down while idling

My point, I melted a plastic Rad in a 460 powered truck because it was jetted two lean. Idle will cool off. I build to pull HEAVY loads with one ton gas powered trucks and found no matter how much cooing you have, its like nuclear reactor, melt down if too lean. I read post and did not see this mentioned yet. could have missed it tho:burnout:MT