Last tirp to track; not good!. Bearing came apart in new tranny and ate up planetary gears. I thought that was most of the strange noises. While evaluating that situation the car started to overheat setting there. Then I noticed I had no power to my smc alky (26#'s of boost). Some of my sounds could have been major knock. I hauled it home and had tranny rebuilt then started dealing with over heating issue. Checked thermostat in hot water and it opens at 160 degrees. Put in new sensor and new radiator (f body). Let car idle and could see water circulate when thermo opened and added some more water. Drove about 4 miles to a car wash with 170 temp. Coming home I got on it and it would make some strange noises under boost, but was thinking it was my tranny. After doing that a couple of times my temps went over 200 and climbing. Pulled into driveway a let idle but temps were climbing. shut it down and was bubbling in the resevoir. Question: What are syptoms of headgasket problem and what steps do I take to evaluate. I am running water and cool runnings additive with a 10% if that antifreeze now. I still had about a 40 to 50% antifeeze in from the winter when at the track.