My 1987 Vert has just passed the 200,000-mile threshold. The car is running extremely well with all mechanical problems fixed within the last 12 months (new shocks, ball joints, steering rack, radiator, A/C compressor and lines, distributor rotor and cap, vacuum lines). The engine is running smoothly, is not noisy and doesn't burn oil, but I'm concerned about the age of the timing chain and whether I should replace it even though there are no signs of any problems. I've read that the timing chain should be changed after 150,000 miles or so, but I've also read about many others who are driving well over 300,000 miles with the original timing chain. Any advice on this matter will be greatly appreciated.