started battlin with overheating multiple burpings with no luck, just kept overheating and overflowing the catch can. Finally took that mr gasket 180 hi perf. out threw it in pot brought to boil did nothing barely could open it in a vice with a hammer lol crap, drilled a couple holes in a new stant superstat therm. drove around for a little while didn't go over 195 seems OK 

when i hit 220 i shut it right off. Symptoms= overheating at any speed, overflowing catch can, no flow in rad coolant just rises up from pressure with no where to go, no bubbles of any size.