| better. I down graded my car to gain the reliablility that I thought was needed/required. I live by "if it's not broke, don't fix it". If your Z is running perfect and does not require an engine pull and/or parts replacement and/or upgrade, enjoy it. If you need repairs or need to upgrade the weak/failed parts then do so. If you are out to set records, go all out but expect the consequences. The Z is a mean street car and will blow away most cars on the street, if your goal is to be a competitor on the track, that is a different story.. Gary
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