So any ideas before pulling the heads? Like I said new thermostat, new sensor, new pig tail, ODB reads same temp and fluctuates with dash gauge. I have had to add water since filling the radiator after replacing (2 gallons), bled the system till the bleeder looked like it was pissing, coolant has escaped from a new radiator cap twice during this (seems like a lot of pressure), overflow tank has a little excitement going on also, all cylinders reading 40 psi off minimum spec. Heat gun at thermostat housing reads 208, lower hose at engine reads 180....ODB and gauge read 250-253.
