D;
Those were put there (by factory) as "vapor loc" was a problem in that era;
when traveling throught the mid west and desert areas during summer months etc.
Next time you have driven for a while;
stop & feel the line going to the carbs from the pump. If It's really hot think of insulation.
Wooden 'clothes pins' work in a pinch, but look like s#$%....
Good luck.
