Stumped on head gasket symptoms

I mean the previous owners of my SC probably would run coolant lines to the radio because the sun roof was too hot not the most colorful egg in the basket
 
Ok, so I did a compression test and compression seems good. I also did a coolant system pressure test and after fixing a leak at the thermostat housing it holds pressure. Then I did a combustion leak test and I've got combustion gases escaping from my coolant. I'm not sure I want to tear this thing down again for the third time. Thinking it has to be a Crack somewhere not very obvious.
 
A crack within the exhaust port itself(under the valve)?
That's why the leak down test & compression test showed
nothing-valve closed, port sealed.
 
Take the heads to a machine shop and have them magnafluxed, but take them apart before so you don't have to pay the extra money for them to do it. If there is a crack they will find it. Ask them to pay special attention to the ports in the seat and bowl areas.
 
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