Originally Posted by blowninjected540
I seen this before. Ended up being the wrong head gaskets.
I made sure to check the gaskets during the build, I have been through that before as well, also with intake gaskets. I have even went as far as to run 40 below water treatment (two bottles) no sign of change. I am thinking possible flow issue, Heads were rebuilt by a performance shop. Also for what it is worth, I have all new gauges and run a seperate temp. light that (New) that comes on at 240 degrees.