Cheers,
Yeah this one has a lot of water build up and mayo under the rocker cover which would indicate blown head gasket, however it drives mint, all the plugs look fine, and there's no oil in the water.. so maybe moisture build up over so many years. I don't think the oil's been changed for quite a while.
Gonna flush it then see what happens, if the heads cracked then I'll put a alloyhead hunter motor in, 1500gt are yours hunter motors? Are there really many advantages with the hunter motor over the minx engines?