Overheat mystery

Posted by steve-52/200 On 2015/7/15 21:59:31

I did the once popular 288 head on the 327 for the compression hike ,and am plagued with a mysterious overheat problem !
.radiator is record,hoses replaced ,I took out the thermostat ,I'll replace the water pump this weekend and maybe get brave and pull the heat tube but I replaced it before .
Could it be the 288 head. . ?

I still have the 327 head ,but I wonder ,an internal blockage ? Or a difference in the morphology of the head ? I'm mystified

I have a edmunds intake and it splits the radiator outlet to the heater to run through the intake too but I don't think this would overheat the thunderbolt ,?..
Can an ignition faulty wiring cause an overheat? What about lean carburator ?
Can I post a phone pic ?