How hot can aluminum heads get before they warp?

[Stang_ROTY]

Where can I read Jeff's article? I have a correct 302 5.0 reverse rotation pump made by edelbrock. My engine originally came with a standard rotation, pass. side inlet water pump. Any 5.0 owner can verify that their pump inlet is on the driver's side. My engine came with a pass. side outlet. Could that be my problem? Or maybe it's the thermostat. I'll know for sure real soon. I ordered the OEM shroud and a reverse rotation flex fan today. It'll be here by Thurs. Hopefully this works. I really want to drive my car. My situation sounds a lot like the guy who posted a cooling question, he goes by tb. My thermo. doesn't seem to open at the right time. I had to leave it in the water until boiling point to open it.
That probably has something to do with it.

Originally posted by BilLster:
as far as the rotation thing goesa geoff chambers has a good write up on it you could just take a short belt and try the two routings and if it cools with the normal set up you have the wrong water pump but you could just change you routing like in the article.

both pumps force the water the same way when working right it has to do with the side of the pully the belt goes on.