Over heating prob. ideas coments please

[816allen]

When i took her to get legal maybe 10-15 min away jumped on highway most of the way jumped off drove maybe 5 min and she did great once i left, went straight on the highway maybe 5 min she jumped up to 230 240
Jumped off real fast turned it off.........
Cooled down drove home flushed entire system, everything and put new 180 stat in and new antifreeze of-course .
Now i drive it on the highway maybe 2-3 min and shes doing it again wtf hoses all have springs in them so they cant collapse water pump aent leaking but do ya think its going out.....?
Rad looks great...



Also I turn on the heater/defroster i guess, just a slight hint of heat coming out.
I'm also not really feeling a good wind from it or the fan below or on top is that normal?
I know shes old but ya never know so I'm asking,I tried search but really didn't get answers like i want...
Please any info or ideas ya got would help me out thanks!

Also I did burp her real good so i doubt it has air in it...