Are these cars just not meant to idle smoothly like a V8?? Ive owned two so far, an 86 T-type and my current 87 GN and both cars are in excellent condition and running very well, but the idle just seems a little rough. Have replaced nearly every sensor ont he car and its still not perfect. Its not horrible, dont get me wrong, the rpm dont jump or anything, it just feels "rough". Is there anything that clears it up??? is there something wrong with my car or is that just the nature of the beast???