67 barracuda with a 383, need help!

another thing, based on the picture above, is to make sure the cooling system has been serviced and not clogged. the method winorbust is a good way to isolate the problem.

Earlier on my build I had also a cooling problem, for starters my original radiator was too small for the 426 stroker, I got a used tri core radiator with an electric fan and turned out to be severely clogged, had it open, serviced and still did not coool enough on city stop and go traffic and also dripping cooland everytime I parked. the next step was to add a 25lbs cap and get a fan with a shroud, and a high flow thermostat. My engine runs cool now.

if you have an upgraded cam check also the timing, if its too advanced at idle it may overheat in stop-and-go traffic too.