First thing is I have replaced waterpump, thermostat( 4 different ones), cap,and had the system burped by two different radiator shops who have burped mach1's before!! Also had the system checked with a temperature gun to see if it circulating witch it is!! Also had a head gasket test done there is no oil in water and no water in oil and still drives fine and said head gasket test showed it was fine! Also a leak test!! All show fine but after bleeding about a day or so later it pukes again! I think it's the head gasket but not wanting to spend the money if I'm over looking something!! If someone has seen this I could use some advise! Like I said I think it is the head gasket but not sure!! If this problem has been on the forum before, sorry I didn't see it!