Ok guys this is my second domestic vehicle and to be honest I am really starting to regret it. So here is a brief history. I bought it less than 2 months ago it leaked oil so I replaced the intake gaskets and vc gaskets. During that broke bolts then broke ez outs then removed head installed a new head, fired it up all is well. Warmed it up no heat temp gauge isnt rising and the resvoir is overflowing. Let it cool open rad cap let it sit over night refill same issue sob. Think great hg is gone so I do a exhaust gas check in the coolant test came back negative. yay. Remembered when I first got it heat sucked and the temp gauge was funny so I decided to replace the thermostat. Now the temp gauge is acting more normal usually running right in the middle but still no heat but I do get a warm blast of air every now and then and the overflow still fills up. So any suggestions on what to do or check would be wonderful.