521 and cooling?

I will try that thank you. Now because heater core isn't hooked up could I run lines to another small radiator (heater core) and mount it somewhere with another electric fan? Just thinking outside the box

Again, at what temperature does it begin pushing out water?

I am looking for infared gun haven't found it yet and best I could get was 13 lb cap

At idle cold it even comes out now after drilling and 13lb cap

Maybe I just over filled that much and it's gotta piss out?
I'm just hesitant to drain antifreeze and put in water wetter and water (tap is fine right it's well water) then it all pisses out

If your fill cap is the highest point in the system, drain about a quart and a half and run it. If it doesn't dump coolant, your problem is solved.

K I'll let her cool down and try.
Thanks

And the stupid award goes to me!
I drained filled with water and took off overflow hose, ran her up to hot and not one drop came out. I honestly think I overheated it and it filled overflow then I filled it and it was just compressing and pushing it out!!!
Sorry guys and thanks so much for the help.

What electric water pump do you guys recommend for my set up? I could wire it to the switch for electric fans and stay real cool

No issues with overheating at all got 5 passes in and alot of idling thanks everyone.