Trying to set the record for the longest running unmolested Tii engine has come to a halt at 293,821 miles with out the engine being taken apart, a victim of 2 broken rocker arms, one broke from metal fatigue and the other from the broken piece getting caught under the rocker. So I have a very worn bottom end and if I rebuild the head it won't take long to blow out the bottom end so I think I'll just replace the rockers and put it all together, I just need about 6 more months until I get my M20 conversion running and the the Tii gets a much needed restoration. The good news is upon disassembly I found #4 injection line had just about been rubbed through by the breather hose so the whole car could have gone up in flames.