I am using a afco aluminum radiator with a 160 thermostat and a perma cool electric fan. My upper rad hose blew off, my pressure must of built up sky high, and at the time, my temp gauge was not working (just went to the carwash) 20min max ride both ways.... Could my fan be the problem? I do not have a fan shroud and I don't know if its flowing enough cfm... Its a 16" blade.. here is the link if you need more info... Please help as I need to get my stang together.... Thanks for the replies 