Hello, I have a 1981 280zx non-turbo and I am currently having troubles where my engine would stutter and in some cases completely turn off in the middle of cruising, no sudden step on the gas, brake, or shifting, just going about around 30mph and engine would cut. While running the engine feels normal and accelerates fine. I have asked around a few different people and they all say a different thing, so far I have cleaned the MAF sensor (that didn't fix it) and I replaced the ignition coil, that initially seemed to fix as the first drive went flawlessly but the seconded drive it cut out about 4 times in 20 minutes. However on the same drive back, it went flawlessly. Before the ignition coil replacement the engine would stutter multiple times each drive. So I am hoping someone has any recommendations on what to try next.