For some odd reason I keep killing TR6s. I'll start off by saying I'm an idiot and therefore I do idiotic things. Like drive my car open headers once (killed every plug in it), let my car idle during winter and never really drive it (not good im sure), and seafoam the car and turn it off without clearing it out. All of this has contributed to 3 sets of TR6s. Well not that I haven't given them a reason to foul out but I never had this problem when I ran TR55s and I was just as stupid then. Its a heads/cam/intake LS1 with a little over 11.1 compression. The car also seems to start a little better with TR55s (not during anything dumb on my part). I just thought it was odd.