340 with edelbrock heads overheating

Early a body said
yeah no around me has one. I spoke toa buddy of mine that owns a shop he said to bring it in next week and heel test it.

I did pull the #1 spark plug it is brownish. Not suprised since i have been messing with the af mixture and timing

Forgive me if you answered this, but does the highest temp on the IR gun coincide with the temperature gauge? In other words are you SURE da beeotch is really runnin hot?