Nissan 350z , bad headgasket air bubbles to the coolant system

i do have a 350z 05 , it dies have a lot of power , if drive it normally is fine ... but give alot of air bubbles to the coolant system if floor it .... i believe it's bad headgasket or bendshead .... are you guys recommending take the heads to the machine or thru two used head which is on Ebay like 250$ for both
recommendations pls !!!

[@jonathanlicup1459]

absolutely , head a bad head gasket, and need to change 2 parts as well, thermostat and water pump usually the cost of head gasket been blown ......but you can try to put the head gasket liquid fix... a lot of them is working now, just place to your radiator and gasket will fix by it self, 30 dollars cost and worth to try,,,,,,,

[@yoshiz3396]

did you fix it?