Overheating wowes that make no sense - help!!!

Did you install a bottom hose with a spring inside. High flow pump can suck the hose flat and cause overheating issues.
X2...... I sold a Beach Boys style 67' belvedere wagon with a slant six to buddy because of an overheating issue for cheap !
Right after we made the deal we popped the hood to have a look at the Leaning Tower of Power and while I was revin' the motor he says "hey that lower hose is collapsing when you rev it" ? and I'm like you gotta be bullsh*ttin' me , I just sold a car because of a $5 radiator hose ?

So take double D's advise and check dat' hose !!!