340 with edelbrock heads overheating

ok, i found a combustion leak tester at harbor freight. I tested it and the blue fluid in the tester turned green. looks like the head gaskets have failed or something. What head gasket do you all recommend. I am using the felpro 1008
That sucks to hear. My 1008 needed a retorque after a few heat cycles. They would lightly weep coolant on both sides after warning the engine up. No other leaks. It happened out of the blue after driving the new motor 6-7 times. I've never had to re-torque the head bolts but read it not uncommon sometimes with aluminum heads.

Are you using bolts or studs?